Re: [hugin-ptx] Hugin's website rework (long term project)

[Seb Perez-D]

On Tue, Aug 16, 2011 at 08:42, cri  wrote:

> I've implemented a webpage that retrieve a random photo from flickr
> with tags "hugin" and "360x180" using the phpflickr class [1]. As you
> cans see in the preview [2], it is intended to substitute the current
> header in the Hugin's website.
>

You need to check for the permissions as well - not all photographers will
be happy to see one of their "All rights reserved" image in an unlicensed
website. Only grab images which are CC-licensed - otherwise you need to get
in touch with the photographers to request permission.

Best,

Seb

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Re: [hugin-ptx] A strange and off-topic inquiry.

[Seb Perez-D]

See here:
http://www.panoguide.com/forums/tipsntricks/4554/

and here
http://www.nodalninja.com/forum/showthread.php?4114-Revised-version-of-the-tutorial-quot-How-to-make-a-spherical-3D-panorama-with-a-single-camera-and-a-fisheye-lens-quot

A Google search on 360 stereo panoramas will also help you.

Best,

Seb


On Fri, May 27, 2011 at 17:42, xraycrystallographer
 wrote:
> My apologies if this is too off-topic.  I have been using the latest
> versions of Hugin (windows 2011.0.0 RC1) with a quite accurate pano
> head to generate some fantastic (IMHO) spherical panoramas—thanks for
> the tremendous effort you all are making!  The latest version can
> usually stitch the approximate 60 images with almost no artifacts with
> only minimal intervention.  Having spent most of my career working
> with stereo images I suddenly thought that there must be minimal
> “distortion”, even when using the “fisheye” projection and adjusting
> the pano to be circular “looking up”.  This being true, it would seem
> that one could simply move the camera over ca. 6” and repeat the
> process to get a stereo image!  The more I think about this the more
> conflicted I become.  It is obvious that the 3D will “work” when the
> camera lens is pointing perpendicular to the shift, and looking
> “forward”, but the 3D should be reversed when rotated 180deg.  BUT,
> when the spherical image is generated, it really is a pair of images
> of the scene which should be in 3D when oriented properly.   I finally
> tried doing this in a lecture hall nearby and it appears that it does
> work(!), but I shifted my camera too far (I shifted about 18”).  I
> have looked in vain in various user groups to see if anyone else has
> done this but to no avail.  Before I spend the time to repeat the
> experiment using different distances,  I thought I would see if others
> have tried this.  While this group is not really the proper venue, my
> guess is that if anyone has tried this it would probably be someone
> here.
>
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Re: [hugin-ptx] Strange error while making a pano

[Seb Perez-D]

On Sat, Mar 26, 2011 at 14:06, Gerald  wrote:

> enblend: warning: failed to detect any seam
> enblend: mask is entirely black, but white image was not identified as
> redundant
>

See http://hugin.sourceforge.net/docs/manual/Hugin_FAQ.html

Use --finemask

Cheers,

Seb

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[hugin-ptx] Re: Highlighting of images in the GL fast preview - Hugin 2011.0 prerelease

[Seb Perez-D]

On Fri, Mar 11, 2011 at 21:54, Seb Perez-D  wrote:
> I've noticed a recent change in the behaviour of the fast preview.
>
> When toggling an image on or off in the fast preview, it used to just
> make the image appear. Now the image is highlighted in red until the
> mouse leaves the image button. This makes comparing the panorama with
> or without an image much difficult. I use to toggle an image on or off
> quickly to see how it fit, now I cannot do that anymore.
>
> If nobody minds, could this change be reversed?
>
> I like that when you mouse over the image button the image is
> highlighted, I just dislike that it does so when you click on it.

I found that the change was introduced in GLPreviewFrame.cpp by
dmakreshanski when the group selection of images was put in place.

http://hugin.hg.sourceforge.net/hgweb/hugin/hugin/diff/067870ab0d9b/src/hugin1/hugin/GLPreviewFrame.cpp

The patch attached seems to work for me. Could somebody confirm?

Cheers,

Seb

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diff -r 6fcad1e7af5c src/hugin1/hugin/GLPreviewFrame.cpp
--- a/src/hugin1/hugin/GLPreviewFrame.cpp	Mon Mar 07 18:04:21 2011 +0100
+++ b/src/hugin1/hugin/GLPreviewFrame.cpp	Fri Mar 11 22:08:47 2011 +0100
@@ -2024,7 +2024,7 @@
 // the user moves the mouse over the image buttons, but only if the image
 // is being shown.
 if ( 
-//identify_toolbutton->IsToggled() && 
+identify_toolbutton->IsToggled() &&  // SEB
 m_pano->getActiveImages().count(image_number))
 {
 std::vector::iterator it;
@@ -2040,7 +2040,7 @@
 // if the mouse left one of the image toggle buttons with the identification
 // tool active, we should stop showing the image indicator for that button.
 if ( 
-//identify_toolbutton->IsToggled() && 
+identify_toolbutton->IsToggled() && 
 m_pano->getActiveImages().count(image_number))
 {
 std::vector::iterator it;

[hugin-ptx] Highlighting of images in the GL fast preview - Hugin 2011.0 prerelease

[Seb Perez-D]

I've noticed a recent change in the behaviour of the fast preview.

When toggling an image on or off in the fast preview, it used to just
make the image appear. Now the image is highlighted in red until the
mouse leaves the image button. This makes comparing the panorama with
or without an image much difficult. I use to toggle an image on or off
quickly to see how it fit, now I cannot do that anymore.

If nobody minds, could this change be reversed?

I like that when you mouse over the image button the image is
highlighted, I just dislike that it does so when you click on it.

Cheers,

Seb

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Re: [hugin-ptx] error on stitching: enblend: unknown option "-U"

[Seb Perez-D]

On Tue, Mar 8, 2011 at 11:41, Kornel Benko  wrote:
> Am Dienstag, 8. März 2011 schrieb Jeffrey Martin:
>> I got this while stitching:
>>
>> enblend: unknown option "-U"
>>
>> strange, I don't have any -U specified for enblend in my prefs.
>
> Of course you have. See " -Users-jeff-Desktop-t-nex..." in your log
>

This seems to come from the folder where you want to output:
/Users/jeff/Desktop/t/nexus-1row/

It seems that the slashes are being replaced by -

Could you try to output to another folder?

This seems to be Mac specific.

Cheers,

S

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Re: [hugin-ptx] Re: hugin has become unusable for me

[Seb Perez-D]

On Tue, Mar 8, 2011 at 11:30, Jeffrey Martin <360cit...@gmail.com> wrote:
> At any rate, can I file this as a bug?

If you provide a reproducible testcase and the expected behaviour, then yes!

Cheers,

Seb

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Re: [hugin-ptx] Re: Call for Nominations: Dedication of 2011.0

[Seb Perez-D]

On Wed, Mar 2, 2011 at 18:34, harry van der Wolf  wrote:
> So please let us know if you are against dedication in hugin or in
> favor. And if you are in favor of it please mention your person/
> subject/topic for dedication.

I vote against having a recurrent dedication in Hugin.

Cheers,

Seb

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Re: [hugin-ptx] Re: can't build latest hugin from source on ubuntu (error with flann_cpp_s)

[Seb Perez-D]

On Tue, Mar 1, 2011 at 14:29, Kornel Benko  wrote:
>> Using the combination of
>> make package && sudo dpkg -i 
>> is barely better than using
>> make && sudo make install
>
> Naturally I don't follow you here. Installing through package makes it easy
> to deinstall also.
> Ok, maybe it's valid for me only ...

An alternative which I use is checkinstall, which works even when the
make package doesn't. I'm sure it's not the best solution, but it
works for me (and as Kornel says, it's easier to de-install).

Seb

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Re: [hugin-ptx] Optimizer hangs or takes *very* long

[Seb Perez-D]

On Mon, Feb 7, 2011 at 15:48, Ger  wrote:
> Juist built both the latest libpano and hugin from source, still the same 
> result.
>
> Running in gdb and hitting ^C yields a stack trace of an amazing 190
> levels deep, but always with the top frame:
>
>> 0xb6e7a92c in wxImage::ShrinkBy(int, int) const () from 
>> /usr/lib/libwx_gtk2u_core-2.8.so.0
>
> Could this be a wxwidgets bug ?

As nobody else has encountered this bug yet, and nobody can reproduce,
your guess is as good as any ;-)

Standard follow-up would be to know what version of libwxwidgets you have.

Have you tried running autooptimiser http://wiki.panotools.org/Autooptimiser ?

Cheers,

S

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Re: [hugin-ptx] Optimizer hangs or takes *very* long

[Seb Perez-D]

On Mon, Feb 7, 2011 at 11:39, Ger  wrote:
>
> * On Mon Feb 07 11:16:33 +0100 2011, Seb Perez-D wrote:
>
>> On Mon, Feb 7, 2011 at 10:16, Ger  wrote:
>> > * On Sun Feb 06 19:05:35 +0100 2011, Ger wrote:
>> >
>> >> It seems that I am doing something wrong using Hugin, but the
>> >> 'optimize now' button never seems to work for me. The popup appears
>> >> saying 'optimizing variables', but it never finishes. The Elapsed Time
>> >> always shows 0:00:00, and hitting the cancel button does nothing.
>> >>
>> >> Running hugin 2010.0.0+dfsg-3+b1 on debian unstable.
>
>> 1) How many images in your project?
> One
>
>> 2) How many images are visible in the preview?
> One
>
>> 3) On what parameters are you optimizing?
> Tried them all, starting with 'positions' only to 'positions, view and
> barrel'
>
>> 4) Does running Hugin from the command line show anything in the terminal?
> Only the line "Number of images 1"
>
>> 5) Could you share a simple PTO file that causes the issue?
> Attached.

I don't know what you are trying to achieve, though you are right that
the Optimizer should finish, even if the result does not make sense,
and even if the input parameters have "impossible" values (for
instance, are you sure you want a rectilinear output, and are you sure
that the image has 50° angle of view? also, are you sure that the
lines are really horizontal and vertical? the middle kink in the
horizontal lines in the middle is quite strange).

Sorry that I cannot provide more information on the actual cause of
the hangup - I've never had this issue (Ubuntu 10.04), and your pto
file works fine in 2009.5 on Windows.

Cheers,

S

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Re: [hugin-ptx] Optimizer hangs or takes *very* long

[Seb Perez-D]

On Mon, Feb 7, 2011 at 10:16, Ger  wrote:
> * On Sun Feb 06 19:05:35 +0100 2011, Ger wrote:
>
>> It seems that I am doing something wrong using Hugin, but the
>> 'optimize now' button never seems to work for me. The popup appears
>> saying 'optimizing variables', but it never finishes. The Elapsed Time
>> always shows 0:00:00, and hitting the cancel button does nothing.
>>
>> Running hugin 2010.0.0+dfsg-3+b1 on debian unstable.
>
> Sorry to bump myself, but I just verified the same issue with the stock
> Hugin on on Ubuntu 10.04.
>

Hi there

1) How many images in your project?
2) How many images are visible in the preview?
3) On what parameters are you optimizing?
4) Does running Hugin from the command line show anything in the terminal?
5) Could you share a simple PTO file that causes the issue?

Cheers,

Seb

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Re: [hugin-ptx] More image tabs in fast preview window

[Seb Perez-D]

On Thu, Jan 13, 2011 at 05:54, Sigma Relief  wrote:
> Just a minor request for the GUI on the fast preview feature in
> windows; make the numbered tabs closer together when there are more
> images.  [...] Wrapping to a 2nd or 3rd line
> would make identifying images easier as it eliminates having to
> continually scroll back and forth when using the identify feature.

I second this request - it would be very helpful.

Cheers,

Seb

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Re: [hugin-ptx] have you heard about TOAST projection?

[Seb Perez-D]

On Thu, Dec 16, 2010 at 15:48, Sebastien Perez-Duarte
 wrote:
> A much better projection is the Peirce Quincuncial. It is also square,
> but is almost everywhere conformal.

Sorry, I forgot the Wikipedia link!

http://en.wikipedia.org/wiki/Peirce_quincuncial_projection

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Re: [hugin-ptx] PTOptimizer algorithm ?

[Seb Perez-D]

It apparently is a modified Levenberg Marquardt, using two strategies.

The function is RunLMOptimizer, but it is in libpano, not in Hugin:

http://panotools.svn.sourceforge.net/viewvc/panotools/trunk/libpano/optimize.c?revision=1297&view=markup

The L-M algorithm is here:
http://panotools.svn.sourceforge.net/viewvc/panotools/trunk/libpano/lmdif.c?revision=1305&view=markup

See also: https://www.email-lists.org/pipermail/ptx/2004-April/001564.html

Cheers,

Seb

On Thu, Dec 9, 2010 at 12:28, Olivier Croquette  wrote:
> Hello !
>
> Does anyone have pointers or documentation about the algorithm behind
> the PTOptimizer ? Is it something standard or howebrewed? Even some
> keywords to google would be very helpful.
>
> Thanks !
>
> --
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>
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Re: [hugin-ptx] how to avoid overlap of the left and right edges of a panorama?

[Seb Perez-D]

Have you tried optimizing on the field of view of the lens? 360°
should be enough for everyone...

Well, here is a counterexample: http://www.flickr.com/photos/sbprzd/346457104/

Cheers,

Seb

On Fri, Oct 29, 2010 at 13:25, filip  wrote:
> Ok I must admit. This is probably a stupid question. However I didn't
> stumbe upon this problem before using the newest version.
>
> I stitched all images and the preview goes fine, Equirectangulair 360°
> wide. But it seems 360° simply isn't enough... What now? I tried
> stitching the last to the first image in the row as the images I shot
> should make a true 360° image, but that didn't help either.
>
> Trying to output the part that doesn't show a overlap results in the
> enblend error 'mask is entirely black, but white image was not
> identified as redundant', which is a common problem with these
> situations. This I could solve with the --fine-mask option.
>
> What now? ;)
>
> Greetings,
> Filip
>
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Re: [hugin-ptx] Error/Issue in Stereographic Stitching

[Seb Perez-D]

On Wed, Aug 25, 2010 at 15:06, thePanz  wrote:
> I'm stitching 60 images for a stereographic projection. I'm using
> "hugin.win32.5161" from lemur.dreamhosters.com windows build.

Have you tried stitching first to an equirectangular image, then using
this equirectangular to generate the stereographic?

Are you letting Hugin choose the output size automatically? if so,
select something smaller, say 4000x4000.

Cheers,

S

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Re: [hugin-ptx] stopped receiving group messages

[Seb Perez-D]

Check the following URL:
http://groups.google.com/groups/bounced

Maybe your email address is bouncing, and you have to request that
they try again.

I have the same thing with a Gmail address.

Cheers,

Seb

On Fri, Jul 16, 2010 at 13:39, my_daily_...@yahoo.co.uk
 wrote:
> It is strange, but I do not receive messages since 14th of July.
> Regards
> Leonid
>
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Re: [hugin-ptx] svn build fails

[Seb Perez-D]

I would assume that you have the latest version of libpano13, but if
you haven't, my first guess would be this one (I compiled trunk 5071
yesterday in Ubuntu 9.04 without problems).

Cheers,

Seb

On Thu, Mar 18, 2010 at 01:51, prokoudine
 wrote:
> Hi,
>
> I'm trying to build rev5071 on Ubuntu 9.10:
>
> [ 32%] Building CXX object src/hugin_base/CMakeFiles/huginbase.dir/
> panodata/PanoramaOptions.cpp.o
> /home/avp/soft/src/hugin-trunk/src/hugin_base/panodata/
> PanoramaOptions.cpp: In member function ‘void
> HuginBase::PanoramaOptions::setProjectionParameters(const
> std::vector >&)’:
> /home/avp/soft/src/hugin-trunk/src/hugin_base/panodata/
> PanoramaOptions.cpp:216: error: ‘queryFOVLimits’ was not declared in
> this scope
> /home/avp/soft/src/hugin-trunk/src/hugin_base/panodata/
> PanoramaOptions.cpp: In member function ‘void
> HuginBase::PanoramaOptions::resetProjectionParameters()’:
> /home/avp/soft/src/hugin-trunk/src/hugin_base/panodata/
> PanoramaOptions.cpp:229: error: ‘struct pano_projection_parameter’ has
> no member named ‘defValue’
> make[2]: *** [src/hugin_base/CMakeFiles/huginbase.dir/panodata/
> PanoramaOptions.cpp.o] Error 1
> make[1]: *** [src/hugin_base/CMakeFiles/huginbase.dir/all] Error 2
> make: *** [all] Error 2
>
> Any clues?
>
> Alexandre
>
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Re: [hugin-ptx] Re: Towards a non-patented control point detector

[Seb Perez-D]

On Wed, Mar 3, 2010 at 15:14, Rogier Wolff
 wrote:
>
> Daisy, the patent free feature detector.
>

We might want to find something a little less common. Although these
softwares are not doing the same thing, it might be better to have
something more unique:

http://en.wikipedia.org/wiki/Daisy_%28software%29
http://en.wikipedia.org/wiki/DAISY_Digital_Talking_Book
http://www.daisydental.com/software/index.shtml
http://www.daisy.com/
http://www.leedberg.com/glsoft/daisy/
http://www.prodigi.com.au/products/daisy.html

to name but a few...

Cheers,

Seb

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Re: [hugin-ptx] Re: Hugin 2010.1 svn5046 available for download

[Seb Perez-D]

On Thu, Mar 4, 2010 at 09:48, thibault.lemaitre
 wrote:
> Then, I encounter a problem of extraction with the 7zip version. I'm
> on Ubuntu 9.04 using File Roller to manage my archives. I habitually
> don't encounter problems with the 7zip file format. Am I alone?

Why do you want a Windows build if you are using Ubuntu? would you be
better with the native linux version?

Best,

Seb

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Re: [hugin-ptx] >2gb tiff woes :( Help pls!

[Seb Perez-D]

On Sat, Feb 20, 2010 at 04:19, Zoran Zorkic  wrote:
> Got enblend to stitch a pano 3.6gb big. Yay.
> Can't view it with anything. Nay. :(
> Lost hours, my google-fu has failed me.
>
> Managed to convert it to a PNG but nothing wants to touch it.
>

I have managed to edit this kind of panorama in Linux, but it needs a
patched TIFF library: see more explanations here:
http://www.flickr.com/photos/sbprzd/2722213085/

Don't know about anything for Windows, though.

Cheers,

Seb

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Re: [hugin-ptx] Masking inside hugin

[Seb Perez-D]

On Tue, Feb 16, 2010 at 07:34, T. Modes  wrote:
> I implemented a masking tool inside hugin. It's now in the trunk.

This is a great feature. Many many thanks.

One issue I found: if I include two times the same image, there is one
single mask for these two images.

Why would one want to do that? for example to stitch in one part the
horizon/objects far away, and in an independent way an object too
close to the camera to fit in one single picture. For example:
http://www.flickr.com/photos/sbprzd/4144268175/

Cheers,

Seb

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Re: [hugin-ptx] 2010.1.0 testbuild (w. layout) for Win

[Seb Perez-D]

On Wed, Feb 10, 2010 at 17:17, Jan Martin  wrote:
> No, I didn't try yet.

It's a great way to always have an up-to-date system.

> I am on Ubuntu 9.10

Then the instructions should be pretty straightforward:

http://wiki.panotools.org/Hugin_Compiling_Ubuntu

Let us know how it goes.

S.

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Re: [hugin-ptx] 2010.1.0 testbuild (w. layout) for Win

[Seb Perez-D]

On Wed, Feb 10, 2010 at 17:03, Jan Martin  wrote:
> While we are at it:
> Is there a Linux build newer than 2009.4?

1) Building in Linux is not very complicated - have you tried?
2) what flavour of Linux are you using?

Cheers,

Seb

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Re: [hugin-ptx] Re: drag 'n' drop ctrl-pts

[Seb Perez-D]

On Thu, Feb 4, 2010 at 16:27, Thomas  wrote:
> [ ideas about the visualization of control points and distances ]
>
> Aha, I see either again I spoke spanish (optimistic) or you guys just
> didn't like this idea :(

I would be tempted to give the same reply as Lukas, with the current
Hugin trunk and the layout view.

The thickness of the lines gives the number of control points between
images, the color gives the quality of the control points.

The great thing  of this previewing mode is that it shows the images
and their approximate position on the result.

Double-clicking on an image pair loads the two images in the control point tab.

See this image for more:
http://www.flickr.com/photos/36383...@n00/4224767709/sizes/l/
You can clearly see where you are missing control points and which ones are bad.

What is missing in this approach is the different metrics that you had
in your proposal, i.e. maximum error or squared error. Speaking for
myself, I get the maximum error by sorting the control point list (all
images at the same time), so only the average or mean squared error is
relevant.

What do you not like from the current Hugin trunk approach?

Best,

Sébastien

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Re: [hugin-ptx] How to turn off all vignetting correction/photometrics

[Seb Perez-D]

On Sun, Jan 24, 2010 at 23:05, Joe Templeman  wrote:
> I'm just wondering whether its possible to turn off all vignetting
> control since I think that's what's causing it.

On the Camera and Lens tab there is a Reset button. Select all the
images you want to reset first, and tick the Vignetting checkbox.

Alternatively, below the list of images in that same tab, there is a
Photometric tab (next to the Geometric one). Put a 0 for the three
vignetting input boxes.

Cheers,

Seb

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Re: [hugin-ptx] Re: 2009.4.0 Windows Installer Released

[Seb Perez-D]

On Mon, Jan 18, 2010 at 21:28, Erik Krause  wrote:
> Am 18.01.2010 18:46, schrieb allard:
>
>> I can reproduce this error too. Probably it feeds firefox just the
>> path, without a file:// in front of it.
>
> I can't reproduce it. Could it be this is a setting in Firefox?

In Linux (Kubuntu 9.04), the internal help menu launches Kate (a text
editor), so I'm guessing it's more of a system option: if I modify in
the KDE options the program to open HTML files, Firefox launches
without a glitch.

Cheers,

Seb
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Re: [hugin-ptx] Re: Position # entry box

[Seb Perez-D]

On Wed, Jan 13, 2010 at 07:18, allard  wrote:
> Good idea. I would like drag and drop even better. Of course it is
> possible, let's see if there's somebody willing & able to put in the
> work..

I second the idea of drag and drop!

Cheers,

Seb
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Re: [hugin-ptx] Plea for update of autopano-sift-c-2.5.1 tarball

[Seb Perez-D]

On Wed, Jan 6, 2010 at 16:10, Kornel Benko  wrote:
>
> Please never try to compile as root.
> Use e.g.
>        make
>        sudo make install

Sorry, that should have been clearer (and that is what I do).

Perhaps better, although I don't know if autopano-sift-c is setup in
this way, is
   make
   make package
   sudo dpkg -i packane-name

Best,

Seb
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Re: [hugin-ptx] Plea for update of autopano-sift-c-2.5.1 tarball

[Seb Perez-D]

On Wed, Jan 6, 2010 at 13:48, Doug  wrote:
> I ran "cmake .  -DCMAKE_INSTALL_PREFIX=/usr/local" in
> ~/downloads/autopano-sift-c-2.5.1/
> then "make"
> then as root "make clean all"
> which did install autopano-sift-c in
> ~/downloads/autopano-sift-c-2.5.1/APSCpp/, but *not* in /usr/local.
> Then I copied autopano-sift-c to /usr/local/bin.

As root, "make install" should do the trick.

Cheers,

Seb
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Re: [hugin-ptx] Re: JPEG Quality

[Seb Perez-D]

On Thu, Dec 17, 2009 at 14:32, Ron Decline  wrote:
> Still, I  suggest that Hugin put the % sign next to the input box, also a
> drop-down menu (from 0 (worst) to 100 (best) in increments of 10) would be
> nice

I think that the quality is not measured in %, it's just a unitless measure.

Cheers,

Seb

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Re: [hugin-ptx] Re: autopano-sift problem with lots of large images

[Seb Perez-D]

On Wed, Nov 25, 2009 at 18:28, wb  wrote:
> Done: dumont.pto and (.mk).  This is just after the "Load images..."
> step.  If you mean after an additional optimization, I can add that.

You have three wrong control points between images 0 and 3. They are
throwing everything off. Delete them and reoptimize, and everything
works.

Have you tried with cpclean?

Cheers,

Seb

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Re: [hugin-ptx] autopano-sift problem with lots of large images

[Seb Perez-D]

On Wed, Nov 25, 2009 at 17:46, Warren Block  wrote:
> The control points appear to be fine.  It's the position of the images
> that is completely wrong.

Thanks for the images!

It would help if you posted the pto file just after optimisation.

Best,

Seb

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Re: [hugin-ptx] autopano-sift problem with lots of large images

[Seb Perez-D]

On Tue, Nov 24, 2009 at 20:49, wb  wrote:
> autopano-sift and autopano-sift-C have problems with a panorama of six
> 4000x3000 images.  Images end up upside down or twisted, and not
> related to each other at all.  panomatic has no trouble with the same
> images.

Is the problem that you cannot find control points between the images
in autopano-sift, or that the control points are bad? I find it
difficult to believe that this is a resource problem: do you see any
output on the command line that looks suspicious? I've run APSCpp on
several large projects (+100 images) and have not recently had any
issues.

If the control points are bad, you could try using cpclean.

If you do not find control points, have you tried changing the maxdim
parameter? If the images are from a fish-eye or a ultrawide angle
lens, have you tried using the stereographic projection feature?

Cheers,

Seb

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Re: [hugin-ptx] Re: Masking in hugin

[Seb Perez-D]

On Thu, Nov 19, 2009 at 18:52, Timothee  wrote:
>
> That being said, the gimp solution is not so nice for positive
> masking. Then again, neither is the inkscape approach. In both cases,
> we basically have to erase the desired area from all pano layers
> except the current one. That's a lot of boring, manual work when there
> are many layers.

What I do in those cases is to add a layer on the enblended panorama,
add a black mask and paint in the positive parts.

Cheers,

Seb

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Re: [hugin-ptx] Masking in hugin

[Seb Perez-D]

On Mon, Nov 16, 2009 at 03:16, Timothee  wrote:
> I'm trying to do a 360 pano with my kids for xmas and they just won't
> stay still, so I definitely will have to do some level of masking.

You can also edit the TIF images in Gimp (or Photoshop), erasing the
bits you don't want. A bit more cumbersome perhaps, but it works. Just
be sure to uncheck the box "Cropped output" in the options to nona, in
the Stitching tab.

> Will there eventually be a GUI tool within hugin itself to do masking?

There is indeed such a project going on, but not advanced enough I
think. It was a 2008 Google Summer of Code:
http://maskingingui.blogspot.com/

http://wiki.panotools.org/SoC_2008_Masking_in_GUI

Best,

Seb

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[hugin-ptx] Re: psychedlic stitch

[Seb Perez-D]

This is in the OpenGL preview, right?

I've seen it happen to me too - but I've never seen that the output
(through nona) is wrong.

Have you tried using the normal preview?

On Mon, Nov 9, 2009 at 15:11, Jeffrey Martin <360cit...@gmail.com> wrote:
>
> Hi,
>
> I gave Hugin 0.8 2 images - sigma 8mm f/3.5 from canon t1i
>
> and this came out.
>
> crazy stuff! strange lines and stuff.
> www.vrlog.net/temp/weird.jpg
>
> any idea what i'm doing wrong? :-)
>
> thanks,
> Jeffrey
>

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[hugin-ptx] Re: Compiling Enblend (fails on my Debian machine)

[Seb Perez-D]

On Tue, Oct 20, 2009 at 07:10, Yuv  wrote:
>
> I had the same error and fixed it with a couple of new dependencies.
> check the list at 
> http://wiki.panotools.org/Hugin_Compiling_Ubuntu#Building_Enblend
> if it does not work yet, start from scratch:
>
> cd enblend
> rm -fr *
> hg update --clean

I followed exactly the instructions in the wiki, starting from
scratch. Only texinfo was missing on my system. But the compilation
still fails at the end:

Updating ./versenblend.texi
make[2]: *** No rule to make target `/../src/enblend.cc', needed by
`varsenblend.texi'.  Stop.
make[2]: Leaving directory `/home/seb/downloads/enblend/doc'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/seb/downloads/enblend'
make: *** [all] Error 2

The problem seems to be the in Makefile in the doc folder, which contains:
  varsenblend.texi: $(VPATH)/../src/enblend.cc \
but this $VPATH may not be defined.

If I remove all references to $(VPATH) then everything compiles without error.

Cheers,

Seb

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[hugin-ptx] Re: Compiling Enblend (fails on my Debian machine)

[Seb Perez-D]

On Tue, Oct 20, 2009 at 06:30, Wirz  wrote:
> make[2]: *** No rule to make target `/../src/enblend.cc', needed by
> `varsenblend.texi'.  Stop.

For what is worth, I get the same error in Kubuntu 9.04.

By the way, when I do "hg update" I get a screen with three columns
showing three versions of the same file. What should I do there?

Cheers,

Seb

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[hugin-ptx] Re: Bug in the camera response model?

[Seb Perez-D]

On Tue, Oct 13, 2009 at 06:46, Seb Perez-D  wrote:
> On Tue, Oct 13, 2009 at 00:53, Bruno Postle  wrote:
>>>
>>>Can anyone reproduce? (the steps to reproduce are in the bug report).
>>
>> I haven't tried to reproduce, but all this stuff has been heavily
>> refactored in the layout branch, maybe it is already fixed there.
>
> OK, checking out & compiling.

I can confirm that this bug also happens with 0.8.0 gsoc2009layout branch.

https://sourceforge.net/tracker/?func=detail&aid=2877384&group_id=77506&atid=550441

Anybody else?

Cheers,

  Seb

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[hugin-ptx] Re: Next GUI - take 2

[Seb Perez-D]

On Thu, Oct 15, 2009 at 18:43, Tom Sharpless  wrote:
> I think "a new Hugin" should provide only two direct stitching
> targets: cube faces and equirectangular, and let you convert either of
> those to other projections later.

There is however one big usage of Hugin, to generate partial
panoramas. For these, cylindrical or Mercator or rectilinear are more
appropriate. Generating a full equirectangular would not be a solution
in these cases. So Hugin has to keep *some* output projections in
addition to equirectangular and cube face.

My 0.02€

Cheers,

Seb

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[hugin-ptx] Re: Bug in the camera response model?

[Seb Perez-D]

On Tue, Oct 13, 2009 at 00:53, Bruno Postle  wrote:
>>
>>Can anyone reproduce? (the steps to reproduce are in the bug report).
>
> I haven't tried to reproduce, but all this stuff has been heavily
> refactored in the layout branch, maybe it is already fixed there.

OK, checking out & compiling.

Bye,

Seb

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[hugin-ptx] Bug in the camera response model?

[Seb Perez-D]

Hi all

I just got bitten by a strange bug, which I described here:
https://sourceforge.net/tracker/?func=detail&aid=2877384&group_id=77506&atid=550441

Basically, with two lenses and different camera response models, the
output depends on which image is first, which was a surprise to me.

Can anyone reproduce? (the steps to reproduce are in the bug report).

Best,

Seb

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[hugin-ptx] Re: traditional preview

[Seb Perez-D]

On Fri, Oct 9, 2009 at 09:58, Bruno Postle  wrote:
>
> Is this the case even with the 'Photometrics' button enabled in the
> Fast Preview?

I must say I hadn't noticed this button. Gosh, if a frequent user like
me misses this, I can only imagine how daunting Hugin can look like
for a newbie... ;-)

Cheers,

Seb

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[hugin-ptx] Re: traditional preview

[Seb Perez-D]

On Thu, Oct 8, 2009 at 23:54, Bruno Postle  wrote:
>
> On Thu 08-Oct-2009 at 17:46 -0400, Yuval Levy wrote:
>>
>>I recall there was some reason to keep the old preview next to the new
>>one. Is this still the case, or can we forego the old preview and work
>>with the new one only?
>
> The 'old' Preview is somewhat more accurate, it doesn't have the
> problems the Fast Preview sometimes has with images getting
> scrambled, but the main thing is that it is currently the only way
> to show HDR stacks with tonemapping - It isn't clear that this
> could be done at all in the Fast Preview.
>

Also, the normal preview is the only one accurate enough for white
balance and exposure correction. The Fast preview will show strange
colours.

Cheers,

Seb

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[hugin-ptx] Re: Anybody use this Free Flash Panorama Hosting - You3DView.com

[Seb Perez-D]

And http://www.you3dview.com/video/140/Tikal-Mexico is just the same
panorama as here:
http://mexpedition.blogspot.com/2009/04/tikal-spherical-panorama.html
Of course the quality of the initial image is much better.

I will stop now.

On Wed, Sep 30, 2009 at 08:48, Seb Perez-D  wrote:
> Also, it seems that some of the images posted by wzqhzsc (which I
> assume is you, since this nickname has posted the same message as you
> on other forums) are not his.
>
> http://www.you3dview.com/video/138/Night-panorama-of-Concordia is
> copyright by Guillaume Dargaud
> http://www.gdargaud.net/Antarctica/WinterDCe.html
>
> http://www.you3dview.com/video/141/Leeds-University-Clinical-Science-Lab-2004
> is (c) Red Door VR Limited (http://www.red-door.co.uk/index.html) as
> can be seen in the image http://www.you3dview.com/flvideo/141/141.jpg
>
> Reasons enough not to comment on the quality of the website itself.
>
>
> On Wed, Sep 30, 2009 at 08:38, Seb Perez-D  wrote:
>> If you are trying to self-promote that website, at least be upfront about it.
>>
>> On Wed, Sep 30, 2009 at 08:22, Leo  wrote:
>>>
>>> It said: Free Flash Panorama Hosting like YouTube, Sharing panorama at
>>> You3DView is as easy as sharing video at YouTube.
>>>
>>> Any comments? Good or not?
>>
>

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[hugin-ptx] Re: Anybody use this Free Flash Panorama Hosting - You3DView.com

[Seb Perez-D]

Also, it seems that some of the images posted by wzqhzsc (which I
assume is you, since this nickname has posted the same message as you
on other forums) are not his.

http://www.you3dview.com/video/138/Night-panorama-of-Concordia is
copyright by Guillaume Dargaud
http://www.gdargaud.net/Antarctica/WinterDCe.html

http://www.you3dview.com/video/141/Leeds-University-Clinical-Science-Lab-2004
is (c) Red Door VR Limited (http://www.red-door.co.uk/index.html) as
can be seen in the image http://www.you3dview.com/flvideo/141/141.jpg

Reasons enough not to comment on the quality of the website itself.


On Wed, Sep 30, 2009 at 08:38, Seb Perez-D  wrote:
> If you are trying to self-promote that website, at least be upfront about it.
>
> On Wed, Sep 30, 2009 at 08:22, Leo  wrote:
>>
>> It said: Free Flash Panorama Hosting like YouTube, Sharing panorama at
>> You3DView is as easy as sharing video at YouTube.
>>
>> Any comments? Good or not?
>

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[hugin-ptx] Re: Anybody use this Free Flash Panorama Hosting - You3DView.com

[Seb Perez-D]

If you are trying to self-promote that website, at least be upfront about it.

On Wed, Sep 30, 2009 at 08:22, Leo  wrote:
>
> It said: Free Flash Panorama Hosting like YouTube, Sharing panorama at
> You3DView is as easy as sharing video at YouTube.
>
> Any comments? Good or not?

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[hugin-ptx] Re: Sloooow Moving

[Seb Perez-D]

On Wed, Sep 23, 2009 at 03:42, Dale Beams  wrote:
> On a side note, using "auto fine tune".  Perhaps the problem is there.
> Before it wasn't this slow even with all three options checked.

Adding a control point with auto fine tune takes a reasonable amount
of time on my computer. Linux Ubuntu 9.04, Hugin 2009.2 up to date.

Cheers,

Seb

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[hugin-ptx] Re: Sloooow Moving

[Seb Perez-D]

On Wed, Sep 23, 2009 at 08:38, Carl von Einem  wrote:
>
> Uncheck "auto fine tune". I don't
> understand why this option is set as a default. Or why hugin isn't able
> to remember that I normally don't want to use this option.

+1

This is the button I uncheck *every* time I start Hugin.

Cheers,

Seb

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[hugin-ptx] Re: Uninstalling

[Seb Perez-D]

You remove the folder with the Hguin program? the only thing left is
the keys in the registry, but as a Windows user you might just want to
live with that... The Hugin installation is selfcontained.

On Thu, Sep 17, 2009 at 20:35, Mike  wrote:
>
> Hi, how do I uninstall hugin, it doesn't show up in the Windows add or
> remove programs list?
>

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[hugin-ptx] Re: Usage: De-fisheye with panotools (or via hugin)

[Seb Perez-D]

On Wed, Sep 16, 2009 at 15:45, Oskar Sander  wrote:
> De-fisheye conversion of a single image should be possible to do using PT,
> right?   If there is a writeup on this is somewhere and could I please ask
> for a pointer to it in that case?

Open Hugin, add a fish-eye image, assign the correct input projection
with hfov and barrel distortion, select Rectilinear as output
projection, choose your output angles, select optimal size, and save
as defish.pto.

Then on the command line you just do
  nona -o defished  defished.pto anotherimagetodefish.jpg

Cheers,

Seb

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[hugin-ptx] Re: missing keyboard shortcuts in os/x and linux

[Seb Perez-D]

On Wed, Sep 16, 2009 at 00:09, Bruno Postle  wrote:
>
> On Tue 15-Sep-2009 at 06:20 -0700, rok senk wrote:
>>
>>Delete key worked before hugin 7.0 for me, but not since.
>
> Same here, the Delete key hasn't worked in the Control Points tab
> for a long time.

Same here - but it works in the control points window (the one that
you raise with F3... ;-)

S

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[hugin-ptx] Re: focus stacking for dummies?

[Seb Perez-D]

On Tue, Sep 15, 2009 at 16:35, John Isner  wrote:
> Here is my most successful result (the notes below the photo give some
> technical details about the setup).
>
> http://www.23hq.com/photogroup/meetthegimp/photo/4948800
>
>  As you can see, there are halos on the tiles' top and right edges that get
> worse as you move deeper into the stack.  Perhaps this is the accumulated
> error resulting from the way align_image_stack creates control points in
> moving pairs along the stack, as Gerry discovered.  If so, would changing
> the input order in align_image_stack help?   I will restack the input images
> and see if it helps.

I also haven't managed to get great output from enfuse for focus
stacks (and I don't think I've seen a good proof on the web either).
The examples so far seem to have this halo:
* http://groups.google.com/group/hugin-ptx/browse_thread/thread/6348591a867fe9d2
* http://www.flickr.com/photos/haesemeyer/3463446490/

One impression I have is that the change in focus from one image to
the other must be small, so that there is a clear common part in focus
between two images. But even then I'm not sure it would be enough.

Cheers,

Seb

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[hugin-ptx] Re: missing keyboard shortcuts in os/x and linux

[Seb Perez-D]

On Tue, Sep 15, 2009 at 15:02, rok senk  wrote:
> I compiled hugin recently on Arch linux. For me all shortcuts work,
> except for delete key. I use slovenian keyboard.

For the delete key to work, you have to have selected a control point
pair. I assume this is the case?

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[hugin-ptx] Re: missing keyboard shortcuts in os/x and linux

[Seb Perez-D]

On Tue, Sep 15, 2009 at 10:57, dex Otaku  wrote:
> I haven't tried the linux 0.8.0 yet but last I tried using 0.7.0 there
> [about a month ago] it was the same as under OS/X. [...]

> Another thing I've noticed is the differences in behaviour in the
> control point editor between windows and linux/mac as well - ctrl
> +mouse and shift+mouse are next to useless.  ctrl+mouse = move the pic
> - under windows, it moves fairly consistently in a relative
> positioning fashion [deciding occasionally to jump randomly]; under
> linux/mac it moves consistently in an absolute positioning fashion
> [meaning moving around when zoomed at 1:1 is almost impossible unless
> the screen resolution is as large as the pic]. [...]

Strange, because it works for me - and I would imagine for other linux
users as well, and I'm pretty sure for OS/X users too.

Can you give more information about:
* your linux distribution
* your window manager
* your international setting (are you under a particular keyboard?
non-western character set?)
* are you using Hugin in English or in another language?
* whether you compiled Hugin yourself
* your graphic/video card
* the amount of RAM you have
* other information that may help diagnose what your computer has.

Cheers,

Seb

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[hugin-ptx] Re: missing keyboard shortcuts in os/x and linux

[Seb Perez-D]

On Tue, Sep 15, 2009 at 03:26, dex Otaku  wrote:
> I noticed the lack of keyboard shortcuts that exist in the Windows
> version [all except the ones listed in the menus] some time ago with
> 0.7.0.  Now I'm using 0.8.0 on the Mac at work and it still lacks the
> shortcuts.

Which shortcuts are you missing in Linux? I have several, so I would
be glad to know which additional ones there are.

F to finetune a control point pair
A to add the pair
G to generate "fixed" control points
Del to delete a control point
Ctrl T to optimize
Ctrl S to save

Cheers,

Seb

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[hugin-ptx] Re: Hugin-2009.2.0_beta3 released

[Seb Perez-D]

On Fri, Sep 11, 2009 at 17:46, Yuval Levy  wrote:
>
> Bruno Postle wrote:
>> I 'think' this is caused by building on a system with the
>> proprietary nvidia driver, it would be useful to confirm this.
>
> I'll only have access to my (Ubuntu) workstation with proprietary nvidia
> drivers in one week. It built there last time I tried.

Hugin 2009.2 builds fine under Ubuntu 9.04 x86_64 with Nvidia drivers.

Cheers,

Seb

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[hugin-ptx] Re: Enblend 4.0 messes image

[Seb Perez-D]

On Fri, Sep 11, 2009 at 17:47, Alexandre Duret-Lutz  wrote:
>
> On Fri, Sep 11, 2009 at 5:02 PM, cspiel  wrote:
>> Could give any revision after 33a5cee578f7 a spin?  I have changed
>> the way distances are measured in the NFT, which makes the bug
>> go away at least in all of my tests.
>
> Just recompiled the tip of the repository and it now works fine on my
> testcase.  Thank you!

Here too, thanks! The output image is fine.

When I use the --gpu option however, a small "mask problem" shows up
in the output image. But if I try to add the option --save-mask, the
error in the output image disappears...

: info: using graphics card: NVIDIA Corporation
: info:renderer: GeForce 8300 GS/PCI/SSE2

Best,

Seb

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[hugin-ptx] Re: Enblend 4.0 messes image

[Seb Perez-D]

On Fri, Sep 11, 2009 at 12:49, cspiel  wrote:
>    Please keep in mind that there is no such thing as an
> "Enblend version 4.0", yet.  Currently, we are in a feature freeze
> for the _upcoming_ version 4.0.  However, if you are adventurous,
> young, daring, and willing to experiment, keep on testing the
> revisions in the Mercurial repository.  Every unique, precise,
> complete, and reproducible bug report is welcome.

Sorry, I was using 4.0 as shorthand for the Mercurial repository -
since this is how the version is reported.

Is there a way around the bug, by using some specific options? I tried
the most obvious ones, but could not find something that worked.

I'll try to work the simplified test case for my images.

Best,

Seb

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[hugin-ptx] Re: Enblend 4.0 messes image

[Seb Perez-D]

On Fri, Sep 11, 2009 at 07:38, cspiel  wrote:
>
> This is a known problem
>    
> http://sourceforge.net/tracker/?func=detail&aid=2855277&group_id=123407&atid=696409

Ah well, it sucks. :-( I would then need to figure a way to have both
4.0 and 3.2 installed at the same time.

I tried with --no-optimize and with --fine-mask (not at the same time)
but the bug still shows up.

Cheers,

Seb

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[hugin-ptx] Enblend 4.0 messes image

[Seb Perez-D]

Hi all

I tried enblend 4 as described on the wiki, in Linux Ubuntu 9.04
x86_64. With a standard equirectangular panorama, I get the following
strange result:
http://farm4.static.flickr.com/3530/3907886322_4280aa77f6_b.jpg
This is a reduced version of the 1x5000 original.

When I create the image at a smaller resolution, the strange errors go
away. I've tried with OpenMP disabled at compilation, and with the
image cache enabled.

And when I use enblend 3.2, even at full resolution, it works and produces this:
http://www.flickr.com/photos/sbprzd/3907902566/

The command line used is: enblend --compression=LZW -o out.tif -w -l 15 in*.tif

The issue can be seen in the masks, using the option --save-mask:
http://farm3.static.flickr.com/2450/3908003514_f269b493b3_o.jpg
The mask in the bottom left corner (mask number 7) seems to be wrong.

Here are the different component images, before blending. Mask number
7 would go between image 7 and all the previous ones.
http://farm4.static.flickr.com/3101/3908003530_cb9bde9e3d_b.jpg

Does anyone have a clue how to solve this? I've gone back to enblend
3.2 for the moment...

Cheers,

Seb

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[hugin-ptx] Re: Tilt transformation...

[Seb Perez-D]

On Wed, Sep 9, 2009 at 23:03, D M German  wrote:
> I have the inverse transformations done. they are described here:
>
> http://turingmachine.org/~dmg/temp/tiltEq.pdf
>
> I am struggling with the inverse ones. If anybody wants to help, I'll be
> grateful. This is the only roadblock to have an alpha version of it.

Looking at the formulas, I have the impression that the inverse
transformation should not be complicated - but this probably means I
missed something.

The inverse operation of V' = Mx My Mz V is
   V = Mz- My- Mx- V' (1)
with Mx- defined as Mx but with a -theta instead of theta (rotation
around an axis can be undone by rotating by the opposite amount). You
just have to be careful with the order of the unrotations.

V' is known up to a multiplicative constant, and is proportional to
(x'/d ; y'/d; 1). So we find V up to a multiplicative constant by the
inverse operation (1) above, and x0 and y0 are obtained by:
x0 = V0 * d / V2
y0 = V1 * d / V2

Does this make sense?

S

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[hugin-ptx] Re: Installer for SVN 4352 / 2009.2

[Seb Perez-D]

On Wed, Sep 9, 2009 at 11:45, Ad Huikeshoven wrote:
> Yuval asked me to build an installer based on 2009.2 branch in stead of
> trunk. This morning I succeeded in packaging something. It should be up at
> http://hugin.huikeshoven.org/ now.

What would be great is a version of the Installer that does not need
administrator rights. Since Hugin "just works" if you install it in a
folder, I don't think that would cause (much) problems.

The fact is that I only have Hugin 0.7 (SVN 3407) on this (locked) machine...

Cheers,

Seb

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[hugin-ptx] Re: strangely calling antipano-sift-c

[Seb Perez-D]

On Wed, Sep 9, 2009 at 08:48, Elvis wrote:
> And I check my hugin SVN 3478, there is no antipano-sift-c excutable,
>
> but there is a antipano excutable,
>
> I thought builded hugin should call something which was created inside
> the project, but not a ready-made one,
>
> and I found there seems to be  no source code of antipano-sift-c, even
> in SVN 4096

I assume you mean autopano-sift-c ;-)

Autopano-sift-c (APSC for short) is not included in the same part of
the SVN tree as Hugin, but it has its own special folder. You need to
download it and build it separately.

http://wiki.panotools.org/Hugin_SDK_%28MSVC_2008%29#autopano-sift-C

Cheers,

Seb

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[hugin-ptx] Re: Hugin system recommendation for the future?

[Seb Perez-D]

On Mon, Sep 7, 2009 at 13:15, Zoran Zorkic wrote:
> On Sep 7, 12:45 pm, Seb Perez-D  wrote:
>
>> I've read (and I believe it is true) that a very very hard drive is
>> needed - some setups that have been mentioned in PanotoolsNG have
>> several fast drives acting as one without redundancies.
>
> It helps when your system runs out of memory and has to swap to disk.
> Having a fast raid 0 field can speed things up considerably. Though if
> you have 16gb of ram it should not matter much.

One thing that is slow is writing the TIF files produced by nona and
reading them again by enblend. One way to speed the process would be
to ensure that everything stays in RAM. With enough memory this could
be done.

Cheers,

Seb

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[hugin-ptx] Re: Hugin system recommendation for the future?

[Seb Perez-D]

On Mon, Sep 7, 2009 at 12:22, Oskar Sander wrote:
> How does an ideal Hugin system look like (for example Windows) going
> forward?   I suppose huge amounts of memory is still good, but how does
> other factors rank (i.e. multiple cores, GPU etc)?

I've read (and I believe it is true) that a very very hard drive is
needed - some setups that have been mentioned in PanotoolsNG have
several fast drives acting as one without redundancies.

A lot of RAM also helps. Multiple cores are difficult to use, but this
changes over time (see the recent enblend with OpenMP)

Cheers,

Seb

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[hugin-ptx] Re: Flipping Photos !

[Seb Perez-D]

On Thu, Sep 3, 2009 at 17:03, Dale Beams wrote:
> I'd be think it's more liable that Hugin or Image-Exif Tool is not properly
> interpreting the orientation.  Something's wrong

This can happen if the EXIF is not recognized. In practice I think it
works. If Hugin complains that the images don't have EXIF data, then
that is the problem.

Loading your images in Hugin gets them all upright, without errors. So
the EXIF part is working fine.

> Which brings me back to "pattern matching".  In life we know an elephant is
> an elephant weather it be pink, white blue or grey.  It's a pattern we
> recognize.
>
> Looking at a set of photos we can visually match up what goes where not
> based on control points but based on patterns.  These patterns are made up
> of colors, shapes, and area.  Is there "matching" software in the community
> that could be integrated into hugin that would look at these options.  Then
> if there were real control point errors of outrageous amounts, the program
> would know it was wrong.

There are alternatives to autopano-sift-c, though none is foolproof
(you could try MatchPoint for example). There are also lots of options
for APSC: you can refine the control points, use RANSAC, etc. Then
there are methods to take out the wrong control points, for example in
the sky (Celeste, already included in Hugin). ptoclean
(http://search.cpan.org/~bpostle/Panotools-Script-0.22/bin/ptoclean)
does what you want as well.

In the case of your images, I just did a new autopano-sift-c. The
three wrong control points were found, but by looking at the list of
control points sorted by size, and deleting them, it was fine.

Deleting the control points with the largest error is not always the
best approach. The technique ptoclean uses is much more subtle.

> I'm using autopano-sift-c.  Assuming that the display is only cosmetic, why
> is the right side of the pano flipped upside down and the left side the
> correct orientation?  I assume it's because of the one image.  The problem
> is, while this pano is a fairly simple error problem, other panos will get
> images flipped every which direction.  Is the automatic point control really
> this bad (ie, autopano-sift-c)?

The right side is flipped because one image pair in the middle is way
wrong. This inverts one of the images, and the others just follow. The
other images have no way of knowing that they are upside down, since
they are only connected to the image that gets flipped.

Cheers,

Seb

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[hugin-ptx] Re: Flipping Photos !

[Seb Perez-D]

On Thu, Sep 3, 2009 at 15:06, Dale Beams wrote:
> While the issue is the control point error, the bigger issue is that Hugin
> or Hugin's assistant is failing to recognize a photo in the proper position
> and is flipping the photo.  Remember I only used the assistant tab for
> loading the photos and allowed Hugin to create the control points through
> the assistant.
>
> The control point errors are a result of the photo being loaded in the wrong
> orientation, not because of control point errors.  From what I can tell the
> control piont errors are a result not the cause of the photo orientation.
> Hugin is not gettting the orientation correct.  Unless someone can enlighten
> me.

The control points are generated automatically in your case (probably
autopano-sift-c? you can check that in your preferences). The control
point generator does not care about the orientation of the pictures -
it can match in all directions
(http://en.wikipedia.org/wiki/Scale-invariant_feature_transform).

Once all these control points are generated (this is automatic with
the assistant), the image parameters are optimized, some control
points are pruned, and the preview is shown. In your case the wrong
control points caused some of the images to be flipped upside down.
Hugin then changes the orientation of the images in the control point
window, which makes it look like it has read the image upside down -
but it hasn't, it's just a cosmetic thing.

Try dragging and dropping the images in a blank hugin project and see
how the images appear in the control point window.

Cheers,

Seb

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[hugin-ptx] Re: Flipping Photos !

[Seb Perez-D]

On Thu, Sep 3, 2009 at 13:56, Oskar Sander wrote:
> Did these controll points stand out looking at the list of control points,
> or did you identify these in another way?
>
> I think control point quality the key to many experienced problems
> (including mine!) and ways to help the user quickly identify problems and/or
> the algorithms to weed out bad ones from start better is a good area with
> respect to "bang for the bucks" on development.

After optimizing once with the simplest criteria, I looked at the list
of all control points (pressing F3), sorted them by distance, and
looked at the largest value. The image pair was loaded and I saw that
in fact the three highest errors were on the same, completely
erroneous, image pair. I deleted these three points, reoptimized, and
the "flipping" disappeared. I then repeated this operation a few
times.

Perhaps we could merge ptograph with the average/median/max error
between image pairs to make the wrong connections stand out?

Cheers,

Seb

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[hugin-ptx] Re: Exposure Bracket Control Points

[Seb Perez-D]

I have a similar but more automatic approach. I create the pto project
file for one exposure, and then use a custom script to generate the
panoramas for the different exposures. One feature of nona is very
useful: you can pass the names of the images on the command line and
it will use those images instead of the ones in the pto file. What the
script does is to increase the number in the filename of the images.

An alternative would be to use the "Apply template" in Hugin (in the
File menu), which reuses the settings of another pto file. You could
then use ptomerge
(http://search.cpan.org/dist/Panotools-Script/bin/ptomerge) to merge
these different exposures into one.

Cheers,

Seb

On Thu, Sep 3, 2009 at 12:16, Eduardo Perez
Esteban wrote:
> I guess you are doing HDR panoramas, aren't you? Me too, but I take a
> completely different approach: instead of passing all the images to Hugin, I
> make a separate panorama for each exposure, and merge them afterwards; when
> the exposures are aligned, the control points and optimizations can be
> shared, I just change the images.
>
> My workflow is:
>
> * Copy the files from the first exposure to IMG1, IMG2, ..., IMGn (actually,
> I use symbolic links in Linux, but Windows users will probably have to copy
> the files).
> * Open IMG1, IMG2, ..., IMGn with Hugin, create the control points,
> optimize, ...; save the project and create a panorama named PANO1.
> * Now copy the files from the second exposure over IMG1, IMG2, ..., IMGn;
> execute the project again, but save the result to PANO2.
> * Repeat for each exposure, and you will obtain a set of bracketed panoramas
> PANO1, PANO2, ..., PANOn.
> * Do all the HDR work.
>
> Hope this helps.
>
> On Thu, Sep 3, 2009 at 10:19 AM, RueiKe  wrote:
>>
>> I am looking for ways to simplify some of my more complex projects
>> which could be 217 images connected by >10,000 control points.  In
>> these cases I am doing 7 shot brackets for 31 images for full 360 x
>> 180 degree pano.
>>
>> Seems like control points would be greatly simplified if I could just
>> get hugin to assume the bracketed images were already aligned.  I have
>> done a case where I just picked alignment points on the 4 corners of a
>> few photos and it seemed to work fine.  Is this a reasonable
>> approach?  Would it be possible to have an option to add a set of
>> fixed control points for a specified set of aligned images?
>>
>> Thanks,
>> Rick
>>

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[hugin-ptx] Re: Flipping Photos !

[Seb Perez-D]

On Tue, Sep 1, 2009 at 11:21, Dale Beams wrote:
> Hugin is flipping photos.  You can see that the points are correct, however
> it creates a awkward pano.
>
> http://img441.imageshack.us/img441/2173/screenshot12.png
> http://img7.imageshack.us/img7/3069/screenshot13p.png

Given the large errors, it may be that there are several very wrong
control points. Also, the control points you show are very
concentrated. Try resetting the position of all images and optimising
again - perhaps starting with just a few images and adding them one by
one until you find the problem.

Cheers,

Seb

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[hugin-ptx] Re: how to do the whole stitch from command line?

[Seb Perez-D]

On Fri, Aug 28, 2009 at 11:58, Elvis wrote:
> How to do the whole stitch frome command line ?

You might like to read the thread
http://groups.google.com/group/hugin-ptx/browse_thread/thread/95d6134fa8eb7b16

Bruno gives the name of the programs for each step. You might also
want to look at the Panotools-Script library, which contains the tools
you need.
http://search.cpan.org/dist/Panotools-Script/

Cheers,

Seb

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[hugin-ptx] Re: I would like to have some features, and I have money for it.

[Seb Perez-D]

On Tue, Aug 25, 2009 at 20:35, Seb Perez-D wrote:
> I see the button, when I press it I see the blue lines, but I don't
> see the orange ones.

Oops, my mistake: it's because all my control points were very good.

Sorry about this, and thanks a lot for this feature.

Best,

Seb

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[hugin-ptx] Re: I would like to have some features, and I have money for it.

[Seb Perez-D]

On Tue, Aug 25, 2009 at 20:18, James Legg wrote:
> I have improved it and commited it to trunk. svn revision 4277 or later
> will have this feature.
>
> You can see the control points in the fast preview by pressing the 'Show
> Control Points' button.
> Lines appear over the preview with the end positions of all control
> point pairs between currently visible images. Orange lines indicate
> normal control points, blue lines indicate line control points. You can
> turn the lines off by pressing the button again.

I updated to 4277.

I see the button, when I press it I see the blue lines, but I don't
see the orange ones.

In linux amd64

Cheers,

Seb

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[hugin-ptx] Re: I would like to have some features, and I have money for it.

[Seb Perez-D]

On Sun, Aug 23, 2009 at 21:15, Stefan de Konink  wrote:

>
> - Create control *lines* between two imagines, for example if a
> straight road is available but the photo's are non-overlapping or
> difficult to enter features on. Automatically find lines
> (Houghtransform)  or manually enter lines (like horizontal/vertical
> now) that can be used as parameters to move a photo along and/or
> transform the image for placement. - 150 euro
>

I though this was somewhat already there with the "Other" line type, t3 -
you can manually add point that are on the same straight line but not on the
same picture.

Cheers,

Seb

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[hugin-ptx] Re: Landscape and portrait images can't share a lens

[Seb Perez-D]

On Fri, Jul 17, 2009 at 16:58, Thomas Steiner wrote:
> BTW: Probably this is true for every image size of any camera, but
> isn't a lossless jepg rotation only possible for images with sizes
> that can be writen as 2^n or multiples? (So a 2x3 pixel images cannot
> be rotated lossless.)

The blocks are 8x8 or 16x16, so the image size has to be a multiple of
8 or 16. From what I've read, almost all digital cameras produce JPEGs
which follow this rule.

Cheers,

Seb

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[hugin-ptx] Re: Ubuntu 9.04 20090716 Compile Error

[Seb Perez-D]

On Fri, Jul 17, 2009 at 04:05, Dale Beams wrote:
> In file included from /usr/include/c++/4.3/ext/hash_set:64,
>  from /usr/include/boost/graph/adjacency_list.hpp:22,
>  from
> /home/user/hugin/src/hugin_base/algorithms/optimizer/ImageGraph.h:34,
>  from
> /home/user/hugin/src/hugin_base/algorithms/optimizer/PTOptimizer.h:180,
>  from
> /home/user/hugin/src/hugin_base/algorithms/optimizer/PTOptimizer.cpp:28:
> /usr/include/c++/4.3/backward/backward_warning.h:33:2: warning: #warning
> This file includes at least one deprecated or antiquated header which may be

This is a problem in the boost library.
http://groups.google.com/group/hugin-ptx/msg/43577979fb2aec91?

A bug report has been filed:
https://bugs.launchpad.net/ubuntu/+source/boost/+bug/270873

And this is not a compile error, it's a warning. The compilation works
fine in the end.

Cheers,

Seb

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[hugin-ptx] Re: Landscape and portrait images can't share a lens

[Seb Perez-D]

On Thu, Jul 16, 2009 at 13:18, Bart van Andel wrote:
> I've always wondered why this is necessary. I would rather have Hugin
> treat them as the same lens (which it basically is), with the same
> parameters. Everything should be the same, except the image is rolled
> 90 degrees. Why isn't this implemented this way? Images rotated "just"
> 45 degrees can share the same lens, whereas images rotated 90 degrees
> cannot?

I thought that Nicolas meant that the input images were rotated, not
with the roll parameter in Hugin (I don't know how you can have an
input image rotated 45º). Images with different roll parameters can
share the same lens (I do that all the time).

As for the reason, if I were pressed to answer: Hugin calculates the
horizontal field of view based on the width of the image. Whether the
image is horizontal or vertical changes this width, and the code would
need to change a lot for this to work.

Cheers,

Seb

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[hugin-ptx] Re: Landscape and portrait images can't share a lens

[Seb Perez-D]

On Thu, Jul 16, 2009 at 04:56, Nicolas
Pelletier wrote:
> Can I in the GUI know which image is which? so I can separate them back into
> 2 lenses?

Int the image tab you should be able to see the size of the images.
The horizontal and vertical images have the dimensions swapped. Then
it should be easy to give a different lens to both.

Cheers,

Seb

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[hugin-ptx] Re: Autopano-sift-c memory leaks

[Seb Perez-D]

On Thu, Jul 16, 2009 at 03:10, Nicolas
Pelletier wrote:
> Just to confirm, you are running a 64 bit build of APSC. Correct?
> Do you know what was the memory level at which it peaked?

Yes, I build APSC myself in a 64 bit setup, so I imagine it must be a
64 bit build.

Memory consumption was rather limited, around 300M with occasional
jumps to 600M as the images were being read. But this is just a visual
inspection with htop, so nothing very precise.

Cheers,

Seb

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[hugin-ptx] Re: Autopano-sift-c memory leaks

[Seb Perez-D]

On Wed, Jul 15, 2009 at 14:35, Nicolas
Pelletier wrote:
> 36 * 15mpx images will blow up after 30-32 images, regardless of the value
> of maxdim. I've used the default of 1600, and tried many values, even down
> to 100. Still an out of memory.

I've just tried with 64 jpeg images, each 10,000x5000 (i.e., 50 Mpix
each), with the default maxdim, and autopano-sift-c worked without
problems (in Linux, 64 bits). So the issue is either a) Windows
related; b) 32 bits related; c) your particular configuration; d) all
of the preceding; e) other (there must be an error somewhere).

Best,

Seb

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[hugin-ptx] Re: Hugin for CA removal

[Seb Perez-D]

On Mon, Jul 13, 2009 at 23:26, hein wrote:
> Unable to open file '_MG_0172.tif'.

You have of course checked that there is a file called _MG_0172.tif in
the folder where you are running fulla?

Cheers,

Seb

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[hugin-ptx] Re: Autopano-sift-c memory leaks

[Seb Perez-D]

On Sun, Jul 12, 2009 at 20:13, Tom Sharpless wrote:
> In short, the reported failures remain undiagnosed.  So I am appealing
> to all interested parties to try to create a repeatable case where
> APSCpp runs out of memory.

I ran APSCpp on a set of 104 images, each 3872x2592 (10 Mpix),
full-size with the command-line:
autopano-sift-c --maxdim 3872 output.pto 

Generating the keypoints took a bit less than 2 hours. I did not stay
until the end of this phase, but the memory  consumption increased
somewhat to about 3 to 4 GB. Appro 50,000 keypoints per image where
generated.

I let it run overnight, but the system was swapping so much to disk
that I killed the process to make my machine responsive. It was stuck
in the matching phase (Ransac off, ANNmatch on). The memory was 9447M
VIRT and 3069M RES (using htop - incidentally, what would be the
better way of estimating memory consumption?).

I have in total 4GB RAM and a 10GB swap, so the memory usage was very
near the limit. But then again, not completely, so I don't know if
that counts as "runs out of memory".

The system is: Linux Jaunty 64, APSCpp version 2.5.0 for Hugin 0.7
(maybe the Hugin version number could be changed? could it be possible
to have the SVN version number in the APSCpp version?)

Cheers,

Seb

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[hugin-ptx] Re: Hugin for astronomical images

[Seb Perez-D]

On Fri, Jul 10, 2009 at 19:47, Manolo  wrote:
>
> Do you know if align_image_stack produce equally sized images?

Yes. If not, you can play with the pto file that align_image_stack can produce.

Cheers,

Seb

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[hugin-ptx] Re: Hugin for astronomical images

[Seb Perez-D]

On Fri, Jul 10, 2009 at 17:22, Manolo wrote:
>
> Hello,

Hi

> So my plan is to take many such photos, centered in the same star-
> spot, and average them in order to increase S/N ratio. But, because of
> earth rotation, the images will be slighted tilted from one to
> another.

Look at align_image_stack, a command line tool provided with Hugin
http://wiki.panotools.org/Align_image_stack

I think it could do what you want, automatically.

Best,

Seb

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[hugin-ptx] Re: Autopano sift running out of memory

[Seb Perez-D]

On Fri, Jul 10, 2009 at 13:46, Bruno Postle wrote:
>
> If I were stitching gigapixel panoramas (which I'm not), I'd want to
> script the control point generator to only compare pairs of images
> that I already know overlap.  To do this I would run 'generatekeys'
> once for each input photo, then run 'autopano' for each known pair
> (reusing the .key files).  This would be vastly more efficient than
> either running autopano-sift-c once or running it for each pair.

This is a very very good point (I will try to do that next time I am
stitching a gigapixel panorama). I also think it would be useful for
spherical panoramas from fisheye images. When shooting the horizon (8
pictures) I only one the control points between successive images,
although you could find (and autopano and match-n-shift do find)
control points in the corners of images one image apart. It would be
great to have a simple way of saying to the control point generator:
"only match images along this graph".

Best,

Seb

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[hugin-ptx] Re: Autopano sift running out of memory

[Seb Perez-D]

On Fri, Jul 10, 2009 at 13:26, Tom Sharpless  wrote:

> But if nobody uses these files, I don't see any point in ever writing
> them.

The files have proved useful to me in some cases, because you can
reuse the generated files when the matching phase fails (because of
memory issues, etc.).

Of course, if there are no memory problems, the need for those files
disappears ;-)


Cheers,

Seb

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[hugin-ptx] Re: Autopano sift running out of memory

[Seb Perez-D]

On Thu, Jul 9, 2009 at 16:00, nick wrote:
> Error was "Out of memory".

There is currently an unsolved memory loss in autopano-sift-c.

Alternatives include match-n-shift or the old autopano-complete.sh

> I'll try smaller image, but would this impact the quality/precision of
> the control point generation?

Try first with the -s option. This will slightly reduce the precision
of the control points, but if you select the option of non-integer
coordinates the loss should be limited. You could then do an
"autofinetune" in Hugin with the full resolution images.

> Also, is there a stated limit of the maximum number of images * mpex
> per image?

Not that I know of. I've run autopano-sift-c on very large sets of
images (in Linux, with the -s option) without problems (current
personal record, 372 images
)

Cheers,

Seb

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[hugin-ptx] Re: Autopano sift running out of memory

[Seb Perez-D]

On Thu, Jul 9, 2009 at 14:37, nick wrote:
> I have a problem with autompano sift as it runs out of memory.

> Memory itself is not the problem as my box has over 8gig. I've also
> looked a consumption as it is processing and it never goes up. It
> seems more likely that the process tops the 2 gig limit.

Bonjour Nicolas,

A little bit of help from your side is needed...

You don't say what operating system you are using. Also, you don't
specify exactly what version of autopano-sift (autopano-sift is not
part of hugin) you are using. Have you tried with autopano-sift-c? it
is faster and should use less memory.

You also don't give the error ("boum!" doesn't say explicitly what it is).

You could try giving the option to downsize the images before the
control points are created. If I remember correctly, it should be
  -s 1200
to downscale the images to 1200 pixels on the largest dimension. This
should be enough for the control point generation.

Cheers,

Seb

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[hugin-ptx] Re: where to find settings file for hugin?

[Seb Perez-D]

On Wed, Jul 8, 2009 at 02:09, Benjamin
Schnieders wrote:
> ... i think everything will be fine if i can just reset all settings ;)
> but where can i find that file? (almost crawled through my whole home
> folder now...)

.hugin in your home folder (at least it is in my computer)

Cheers,

Seb

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[hugin-ptx] Re: Installing ENBLEND as per instructions...FAIL

[Seb Perez-D]

On Tue, Jul 7, 2009 at 14:20, wetinwales wrote:
> It appears that the final image (now very well stitched) is smaller
> pixel size that the original.
> How do I avoid reducing the pixel sizes (as I want to produce a 2-3GB
> file of textiles)

In the Stitcher tab, you will see a button "Calculate optimal size".

I would suggest reading the manual http://wiki.panotools.org/Hugin

Cheers,

Seb

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[hugin-ptx] Re: Installing ENBLEND as per instructions...FAIL

[Seb Perez-D]

On Tue, Jul 7, 2009 at 12:33, wetinwales wrote:
> here is the URL for an example of what is happening:-
>
> http://www.dotrussell.co.uk/nybfinal.jpg
>

You are trying to create a linear panorama. The usual workflow does
not work. Check the links:
http://www.dojoe.net/tutorials/linear-pano/
http://hugin.sourceforge.net/tutorials/scans/en.shtml

You may need to adapt those for the latest version of Hugin.

Cheers,

Seb

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[hugin-ptx] Re: Installing ENBLEND as per instructions...FAIL

[Seb Perez-D]

On Tue, Jul 7, 2009 at 11:54, wetinwales wrote:
> You must have autoconf installed to compile panoglview.
> Install the appropriate package for your distribution,
> or get the source tarball at http://ftp.gnu.org/gnu/autoconf/

You have to install autoconf:
  sudo apt-get install autoconf
or something similar (try doing: "apt-cache search autoconf" to see a
list of packages)

> hugin will not stitch these two images.

This is unlikely - there is a problem somewhere in what you are doing.

> How can I post you an image of the result?

You can use the google groups interface to upload the files.
http://groups.google.com/group/hugin-ptx
Please upload the pto file and the two images.

Cheers,

Seb

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[hugin-ptx] Re: Installing ENBLEND as per instructions...FAIL

[Seb Perez-D]

On Mon, Jul 6, 2009 at 17:01, Daf Hobson wrote:
> After I posted it dawned on me to use Synaptic in Jaunty (although so
> often in 8.04Ubuntu, Synaptic came to greif)
> Hugin and it's associated crew installed and seems to be working -
> though the screensavers are very different.
> It looks complex but good and worthwhile learning.

The Hugin in the repositories may be quite old. In the long term you
are better off by learning how to compile yourself. Just make sure to
follow exactly the instructions, run one single line after the other
and check that each step works as expected.

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[hugin-ptx] Re: Installing ENBLEND as per instructions...FAIL

[Seb Perez-D]

You seem to have forgotten the instruction to download enblend

cvs -z3 -d:pserver:anonym...@enblend.cvs.sourceforge.net:/cvsroot/enblend
co -P enblend

Check that files are created in the enblend folder. You have to cd
enblend after you run the checkout in cvs.

http://wiki.panotools.org/Hugin_Compiling_ubuntu#Building_Enblend

On Mon, Jul 6, 2009 at 15:30, wetinwales wrote:

> d...@daftop:~$ cvs -d:pserver:anonym...@enblend.cvs.sourceforge.net:/
> cvsroot/enblend login
> Logging in to :pserver:anonym...@enblend.cvs.sourceforge.net:2401/
> cvsroot/enblend
> CVS password:
> d...@daftop:~$ make -f Makefile.cvs
> make: Makefile.cvs: No such file or directory
> make: *** No rule to make target `Makefile.cvs'. Stop.

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[hugin-ptx] Re: learning the source code of hugin

[Seb Perez-D]

There is this documentation:
http://hugin.sourceforge.net/docs/html/

You can find a PDF version (May 2009) here:
http://groups.google.com/group/hugin-ptx/web/hugin-api_2009-04-15.pdf

Good luck !

Seb

On Mon, Jul 6, 2009 at 13:47, Dex wrote:
>
> does it have some documents to help me learning the source code?

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[hugin-ptx] Re: Problem with installation of Hugin on Ubuntu

[Seb Perez-D]

On Sun, Jun 28, 2009 at 03:00, James Legg wrote:
> I think the problem has already been diagnosed by Seb as "Hugin
> requiring GLX and VNC not providing it."

But I have seen a screenshot from the original poster showing Hugin
working under what I assumed to be a VNC. I would be interested in
knowing what the OP did.

Seb

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[hugin-ptx] Re: Some Hugin error

[Seb Perez-D]

On Thu, Jun 25, 2009 at 09:43, Andrii wrote:
>
> According the making of panorama from 81 photos I see such error
> http://groups.google.com/group/hugin-ptx/web/err.GIF
>
> What is mean?

The issue has been diagnosed as a too large output size (75000x75000).

Cheers,

Seb

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