Re: [hugin-ptx] Re: Control points editor / Line detection / Projection of a single image

[Abrimaal]

I'd like to see an example how to prepare such script.

On Thursday, December 8, 2016 at 10:28:17 AM UTC+1, bugbear wrote:
>
> In that case I recommend a script. 
>
>   BugBear 
>
> Abrimaal wrote: 
> > How many? Hundreds in every folder and hundreds of folders :) 
> > 
> > On Wednesday, December 7, 2016 at 9:52:18 AM UTC+1, bugbear wrote: 
> > 
> > Abrimaal wrote: 
> >  > No, taken with various cameras, in differe  nt years, seasons, 
> various objects (mainly architecture) 
> > 
> > How many photographs do you have? 
> > 
> > This would affect the degree to which automation is worth 
> > the time (and trouble) to implement. 
> > 
> >BugBear 
> > 
> > -- 
> > A list of frequently asked questions is available at: 
> http://wiki.panotools.org/Hugin_FAQ 
> > --- 
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>  
>
> > For more options, visit https://groups.google.com/d/optout. 
>
>

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Re: [hugin-ptx] Re: Control points editor / Line detection / Projection of a single image

[bugbear]

In that case I recommend a script.

 BugBear

Abrimaal wrote:

How many? Hundreds in every folder and hundreds of folders :)

On Wednesday, December 7, 2016 at 9:52:18 AM UTC+1, bugbear wrote:

Abrimaal wrote:
 > No, taken with various cameras, in differe  nt years, seasons, various 
objects (mainly architecture)

How many photographs do you have?

This would affect the degree to which automation is worth
the time (and trouble) to implement.

   BugBear

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Re: [hugin-ptx] Re: Control points editor / Line detection / Projection of a single image

[Abrimaal]

How many? Hundreds in every folder and hundreds of folders :)

On Wednesday, December 7, 2016 at 9:52:18 AM UTC+1, bugbear wrote:
>
> Abrimaal wrote: 
> > No, taken with various cameras, in different years, seasons, various 
> objects (mainly architecture) 
>
> How many photographs do you have? 
>
> This would affect the degree to which automation is worth 
> the time (and trouble) to implement. 
>
>   BugBear 
>

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Re: [hugin-ptx] Re: Control points editor / Line detection / Projection of a single image

[bugbear]

Abrimaal wrote:

No, taken with various cameras, in different years, seasons, various objects 
(mainly architecture)


How many photographs do you have?

This would affect the degree to which automation is worth
the time (and trouble) to implement.

 BugBear

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Re: [hugin-ptx] Re: Control points editor / Line detection / Projection of a single image

[Abrimaal]

No, taken with various cameras, in different years, seasons, various 
objects (mainly architecture)
I am not familiar to any of script languages, but it would look like this

define folder variable: path
for each to last file
set projection: rectilinear
run detect vertical lines
run optimize y,p,r,v,b
run calculate size
run autocrop
save .pto file as original-s.pto
save as original-s.jpg (all images are .jpg)
next

Some files will require manual adjustment, but at least half will be done 
correctly :)

On Tuesday, December 6, 2016 at 6:28:28 PM UTC+1, bugbear wrote:
>
> Abrimaal wrote: 
> > Now I have a lot of single photos to straighten. Every time I load a new 
> image, the projection is changed to Equirectangular, when I need 
> Rectilinear. Repeating it too many times is uncomfortable. 
> > Can I save the settings, that are not included in the Preferences to 
> .ini file? 
> > or start Hugin from a .bat file with desired parameters: rectilinear 
> projection, control point detector set to vertical lines etc. ? 
>
> Are your single photos that need straightening all taken in the same way 
> way ? 
>
> If so, this could help: 
>
>
> http://hugin.sourceforge.net/docs/manual/Panorama_scripting_in_a_nutshell.html#Simple_command-line_stitching
>  
>
>BugBear 
>

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Re: [hugin-ptx] Re: Control points editor / Line detection / Projection of a single image

[bugbear]

Abrimaal wrote:

Now I have a lot of single photos to straighten. Every time I load a new image, 
the projection is changed to Equirectangular, when I need Rectilinear. 
Repeating it too many times is uncomfortable.
Can I save the settings, that are not included in the Preferences to .ini file?
or start Hugin from a .bat file with desired parameters: rectilinear 
projection, control point detector set to vertical lines etc. ?


Are your single photos that need straightening all taken in the same way way ?

If so, this could help:

http://hugin.sourceforge.net/docs/manual/Panorama_scripting_in_a_nutshell.html#Simple_command-line_stitching

  BugBear

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[hugin-ptx] Re: Control points editor / Line detection / Projection of a single image

[Abrimaal]

Now I have a lot of single photos to straighten. Every time I load a new 
image, the projection is changed to Equirectangular, when I need 
Rectilinear. Repeating it too many times is uncomfortable. 
Can I save the settings, that are not included in the Preferences to .ini 
file?
or start Hugin from a .bat file with desired parameters: rectilinear 
projection, control point detector set to vertical lines etc. ?

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Re: [hugin-ptx] Re: Control points editor / Line detection / Projection of a single image

[Frederic Da Vitoria]

2016-05-23 21:48 GMT+02:00 Frederic Da Vitoria :

>
> 2016-05-23 21:41 GMT+02:00 Jan Dubiec :
>
>> On 2016-05-23 20:37, Frederic Da Vitoria wrote:
>> [...]
>> > If I have a little time in the following days, I'll do a test:
>> > uninstall Hugin, install 2016.0.0, uncheck the crop checkbox, install
>> > the beta and check. I'll report back.
>> The latest version is here:
>>
>> https://www.dropbox.com/s/5f4zasmblsr5136/HuginSetup_2016.1.0-hg_0acef4fb962d_32bit.exe?dl=0
>>
>> /J.D.
>>
>
> Thank you, Jan
>

I just checked the version linked above without any issue. I first
uninstalled Hugin, installed 2016.0.0, checked that it correctly
"uncropped" the resulting images for Gimp, installed the beta version
above, and checked by creating 2 different panos that the resulting images
were "uncropped" too. I don't know what happened before, but I must say
that the most plausible explanation is that I checked the "clear
parameters" check box during install, although this does not seem very
likely since it is unchecked by default. In case this was indeed a mistake
of mine, sorry for the noise.

-- 
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(davitof)

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Re: [hugin-ptx] Re: Control points editor / Line detection / Projection of a single image

[Frederic Da Vitoria]

2016-05-23 21:41 GMT+02:00 Jan Dubiec :

> On 2016-05-23 20:37, Frederic Da Vitoria wrote:
> [...]
> > If I have a little time in the following days, I'll do a test:
> > uninstall Hugin, install 2016.0.0, uncheck the crop checkbox, install
> > the beta and check. I'll report back.
> The latest version is here:
>
> https://www.dropbox.com/s/5f4zasmblsr5136/HuginSetup_2016.1.0-hg_0acef4fb962d_32bit.exe?dl=0
>
> /J.D.
>

Thank you, Jan

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Re: [hugin-ptx] Re: Control points editor / Line detection / Projection of a single image

[Jan Dubiec]

On 2016-05-23 20:37, Frederic Da Vitoria wrote:
[...]
> If I have a little time in the following days, I'll do a test:
> uninstall Hugin, install 2016.0.0, uncheck the crop checkbox, install
> the beta and check. I'll report back.
The latest version is here:
https://www.dropbox.com/s/5f4zasmblsr5136/HuginSetup_2016.1.0-hg_0acef4fb962d_32bit.exe?dl=0

/J.D.

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Re: [hugin-ptx] Re: Control points editor / Line detection / Projection of a single image

[Frederic Da Vitoria]

2016-05-23 17:43 UTC+02:00, T. Modes :
>
> Am Montag, 23. Mai 2016 01:51:12 UTC+2 schrieb Frederic Da Vitoria:
>>
>>
>> I have a new problem with the beta version Jan compiled: when I use "No
>> exposure correction, low dynamic range", the images are not correctly
>> aligned in Gimp. This worked perfectly until I installed the beta version.
>>
>> I am almost sure I did not ask to reset the parameters, and the interface
>>
>> is still set to "Expert", which maybe means that indeed I did not reset
>> them. Another problem is that I can't find where is this setting now. I
>> haven't used it for years since it was set as I wanted it. I think it used
>>
>> to be in the parameters, but I can't find it any more. Can someone please
>>
>> help me?
>>
>
> Maybe related to
> https://groups.google.com/forum/#!topic/hugin-ptx/BQt_1x5RobM

No, it does not look like it.


> Otherwise you have to give more details. If you only talk from "this
> setting" it is impossible to help you.

Yes, sorry, I should know how frustrating it is when users give vague
explanations. OTOH, since I can't find the parameter in question, it
is difficult for me to give you it's exact name. So I'll try to
explain.

First, I realize I missed an important part: I am using the "Remapped
images". In the default mode, Hugin generates cropped remapped images
in such a way that Gimp lods them completely superposed and that I
have to shift them to create the panorama. I believe this is actually
a Gimp issue, but I know that Hugin has a workaround. This involves
creating images which have the size of the final panorama and placing
them at the correct place so that when they are opened in Gimp, they
are already in the correct position. There used to be a parameter to
set this. IIRC, this was set in the parameters, you couldn't change it
in the Hugin main window. I hope I made more sense this time.

... I found the setting: "Create cropped images by default". And I
found the check box in the Nona Options dialog.

Once again, I believe there is at least a small install bug here: I am
almost sure I did not ask Hugin to reset parameters. Indeed, the
interface is in Expert mode, which seems to indicate that no reset was
performed.

If I have a little time in the following days, I'll do a test:
uninstall Hugin, install 2016.0.0, uncheck the crop checkbox, install
the beta and check. I'll report back.

-- 
Frederic Da Vitoria
(davitof)

Membre de l'April - « promouvoir et défendre le logiciel libre » -
http://www.april.org

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Re: [hugin-ptx] Re: Control points editor / Line detection / Projection of a single image

[T. Modes]

Am Montag, 23. Mai 2016 01:51:12 UTC+2 schrieb Frederic Da Vitoria:
>
>
> I have a new problem with the beta version Jan compiled: when I use "No 
> exposure correction, low dynamic range", the images are not correctly 
> aligned in Gimp. This worked perfectly until I installed the beta version. 
> I am almost sure I did not ask to reset the parameters, and the interface 
> is still set to "Expert", which maybe means that indeed I did not reset 
> them. Another problem is that I can't find where is this setting now. I 
> haven't used it for years since it was set as I wanted it. I think it used 
> to be in the parameters, but I can't find it any more. Can someone please 
> help me?
>

Maybe related to 
https://groups.google.com/forum/#!topic/hugin-ptx/BQt_1x5RobM

Otherwise you have to give more details. If you only talk from "this 
setting" it is impossible to help you.

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Re: [hugin-ptx] Re: Control points editor / Line detection / Projection of a single image

[Frederic Da Vitoria]

2016-05-17 23:48 GMT+02:00 Frederic Da Vitoria :

>
> 2016-05-17 23:29 GMT+02:00 Frederic Da Vitoria :
>
>>
>> 2016-05-15 1:35 GMT+02:00 Jan Dubiec :
>>
>>> On 2016-05-12 20:03, T. Modes wrote:
>>> >
>>> > Am Mittwoch, 11. Mai 2016 10:53:11 UTC+2 schrieb GnomeNomad:
>>> >
>>> > Running linefind on these two images (while using the workflow I've
>>> > always used with Hugin) resulted in 10 vertical lines, 5 of which
>>> are
>>> > actually horizontal lines.
>>> >
>>> > Fixed in repository.
>>> If somebody wants to test this, there is Win32's build of the latest
>>> snapshot of the "default" branch:
>>>
>>> https://www.dropbox.com/s/hplvk0kspc9cx8r/HuginSetup_2016.1.0-hg_912ab8ae8e70_32bit.exe?dl=1
>>> .
>>>
>>
>> Thanks for preparing this, Jan. I have an issue with it, although
>> unrelated with the current issue: I can't drop images on the Hugin window.
>>
>
> The issue disappeared after rebooting my Windows. BTW, I am using Windows
> 10 64 bite.
>

I have a new problem with the beta version Jan compiled: when I use "No
exposure correction, low dynamic range", the images are not correctly
aligned in Gimp. This worked perfectly until I installed the beta version.
I am almost sure I did not ask to reset the parameters, and the interface
is still set to "Expert", which maybe means that indeed I did not reset
them. Another problem is that I can't find where is this setting now. I
haven't used it for years since it was set as I wanted it. I think it used
to be in the parameters, but I can't find it any more. Can someone please
help me?

-- 
Frederic Da Vitoria
(davitof)

Membre de l'April - « promouvoir et défendre le logiciel libre » -
http://www.april.org

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Re: [hugin-ptx] Re: Control points editor / Line detection / Projection of a single image

[Frederic Da Vitoria]

2016-05-17 23:29 GMT+02:00 Frederic Da Vitoria :

>
> 2016-05-15 1:35 GMT+02:00 Jan Dubiec :
>
>> On 2016-05-12 20:03, T. Modes wrote:
>> >
>> > Am Mittwoch, 11. Mai 2016 10:53:11 UTC+2 schrieb GnomeNomad:
>> >
>> > Running linefind on these two images (while using the workflow I've
>> > always used with Hugin) resulted in 10 vertical lines, 5 of which
>> are
>> > actually horizontal lines.
>> >
>> > Fixed in repository.
>> If somebody wants to test this, there is Win32's build of the latest
>> snapshot of the "default" branch:
>>
>> https://www.dropbox.com/s/hplvk0kspc9cx8r/HuginSetup_2016.1.0-hg_912ab8ae8e70_32bit.exe?dl=1
>> .
>>
>
> Thanks for preparing this, Jan. I have an issue with it, although
> unrelated with the current issue: I can't drop images on the Hugin window.
>

The issue disappeared after rebooting my Windows. BTW, I am using Windows
10 64 bite.

-- 
Frederic Da Vitoria
(davitof)

Membre de l'April - « promouvoir et défendre le logiciel libre » -
http://www.april.org

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Re: [hugin-ptx] Re: Control points editor / Line detection / Projection of a single image

[Frederic Da Vitoria]

2016-05-15 1:35 GMT+02:00 Jan Dubiec :

> On 2016-05-12 20:03, T. Modes wrote:
> >
> >
> > Am Mittwoch, 11. Mai 2016 10:53:11 UTC+2 schrieb GnomeNomad:
> >
> > Running linefind on these two images (while using the workflow I've
> > always used with Hugin) resulted in 10 vertical lines, 5 of which are
> > actually horizontal lines.
> >
> >
> > Fixed in repository.
> If somebody wants to test this, there is Win32's build of the latest
> snapshot of the "default" branch:
>
> https://www.dropbox.com/s/hplvk0kspc9cx8r/HuginSetup_2016.1.0-hg_912ab8ae8e70_32bit.exe?dl=1
> .
>

Thanks for preparing this, Jan. I have an issue with it, although unrelated
with the current issue: I can't drop images on the Hugin window.

-- 
Frederic Da Vitoria
(davitof)

Membre de l'April - « promouvoir et défendre le logiciel libre » -
http://www.april.org

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Re: [hugin-ptx] Re: Control points editor / Line detection / Projection of a single image

[Stefan Peter]

Dear Hans
On 17.05.2016 16:56, Hans Bull wrote:
> Thank you Stefan! I did not know the nighlty repository was still alive!
> Saves me much time.

You are welcome. But remember, this repository can be risky. Living on
the edge of technology and all that jazz...

On the other hand, you actively can participate in the development of
Hugin by sharing your experience and any problems you encounter with the
nightly builds on this mailing list. Thank your for downloading!!

With kind regards

Stefan Peter


--
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
(See https://en.wikipedia.org/wiki/Posting_style for details)

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Re: [hugin-ptx] Re: Control points editor / Line detection / Projection of a single image

[Hans Bull]

Thank you Stefan! I did not know the nighlty repository was still alive! 
Saves me much time.
Cheers,
HB



Il giorno lunedì 16 maggio 2016 11:26:37 UTC+2, Stefan Peter ha scritto:
>
>
> > How can I get a 64-bit Debian Linux version with this fix? Thanks. 
>
> You can try the Hugin nightly builds for Ubuntu at 
> https://launchpad.net/~hugin/+archive/ubuntu/nightly 
>
>
> With kind regards 
>
> Stefan Peter 
>
>
> -- 
> -- 
> A: Because it messes up the order in which people normally read text. 
> Q: Why is top-posting such a bad thing? 
> A: Top-posting. 
> Q: What is the most annoying thing in e-mail? 
> (See https://en.wikipedia.org/wiki/Posting_style for details) 
>

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Re: [hugin-ptx] Re: Control points editor / Line detection / Projection of a single image

[Stefan Peter]

Hi David

On 16.05.2016 07:10, David W. Jones wrote:
> On 05/12/2016 08:03 AM, T. Modes wrote:
> 
>> Am Mittwoch, 11. Mai 2016 10:53:11 UTC+2 schrieb GnomeNomad:
>>
>> Running linefind on these two images (while using the workflow I've
>> always used with Hugin) resulted in 10 vertical lines, 5 of which are
>> actually horizontal lines.
>>
>> Fixed in repository.
> 
> How can I get a 64-bit Debian Linux version with this fix? Thanks.

You can try the Hugin nightly builds for Ubuntu at
https://launchpad.net/~hugin/+archive/ubuntu/nightly


With kind regards

Stefan Peter


-- 
--
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
(See https://en.wikipedia.org/wiki/Posting_style for details)

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Re: [hugin-ptx] Re: Control points editor / Line detection / Projection of a single image

[David W. Jones]

On 05/12/2016 08:03 AM, T. Modes wrote:


Am Mittwoch, 11. Mai 2016 10:53:11 UTC+2 schrieb GnomeNomad:

Running linefind on these two images (while using the workflow I've
always used with Hugin) resulted in 10 vertical lines, 5 of which are
actually horizontal lines.

Fixed in repository.


How can I get a 64-bit Debian Linux version with this fix? Thanks.

--
David W. Jones
gnomeno...@gmail.com
wandering the landscape of god
http://dancingtreefrog.com

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Re: [hugin-ptx] Re: Control points editor / Line detection / Projection of a single image

[Jan Dubiec]

On 2016-05-12 20:03, T. Modes wrote:
> 
> 
> Am Mittwoch, 11. Mai 2016 10:53:11 UTC+2 schrieb GnomeNomad:
> 
> Running linefind on these two images (while using the workflow I've
> always used with Hugin) resulted in 10 vertical lines, 5 of which are
> actually horizontal lines.
> 
> 
> Fixed in repository.
If somebody wants to test this, there is Win32's build of the latest
snapshot of the "default" branch:
https://www.dropbox.com/s/hplvk0kspc9cx8r/HuginSetup_2016.1.0-hg_912ab8ae8e70_32bit.exe?dl=1.

/J.D.

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Re: [hugin-ptx] Re: Control points editor / Line detection / Projection of a single image

[David W. Jones]

On 05/12/2016 08:03 AM, T. Modes wrote:


Am Mittwoch, 11. Mai 2016 10:53:11 UTC+2 schrieb GnomeNomad:

Running linefind on these two images (while using the workflow I've
always used with Hugin) resulted in 10 vertical lines, 5 of which are
actually horizontal lines.

Fixed in repository.


Thanks!

--
David W. Jones
gnomeno...@gmail.com
wandering the landscape of god
http://dancingtreefrog.com

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Re: [hugin-ptx] Re: Control points editor / Line detection / Projection of a single image

[T. Modes]

Am Mittwoch, 11. Mai 2016 10:53:11 UTC+2 schrieb GnomeNomad:
>
> Running linefind on these two images (while using the workflow I've 
> always used with Hugin) resulted in 10 vertical lines, 5 of which are 
> actually horizontal lines. 
>

Fixed in repository.

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Re: [hugin-ptx] Re: Control points editor / Line detection / Projection of a single image

[David W. Jones]

On 04/25/2016 04:08 AM, T. Modes wrote:


Am Dienstag, 19. April 2016 05:39:01 UTC+2 schrieb Abrimaal:

*Build 2016: *

The line find routine detects horizontal lines in the images, but
they are listed as vertical. It causes problems with straightening
of panoramas.


linefind searches only for vertical line. Either the orientation of your
images does not match (wrong rotation information) or you rotated the
images in Hugin.
If you don't provide more information, it is impossible to fix it.


Sorry for the delay.

Here's a link to a zipped up PTO, raw images and converted TIFF images 
(converted using RawTherapee), plus the RawTherapee settings files:


http://clanjones.org/linefind-finds-horizontal-lines-test.zip

Running linefind on these two images (while using the workflow I've 
always used with Hugin) resulted in 10 vertical lines, 5 of which are 
actually horizontal lines.


Note: The images are not rotated in camera or any other software, these 
are landscape orientation from start to finish.


Steps I used to produce it using Expert interface:

1. On Photos tab, add the images.
2. Run CPFind.
3. Run linefind.
4. Click Show Control Points button.
6. Sort list by Alignment so vert. Line is at top. Note 10 "vert. 
Lines". Five have distances between 0.59 and 1.08. Five others have 
distances between 37.26 and 44.93.
7. Click on any vertical line with small distances. Note that each is 
visibly a vertical line.
8. Click on any verical line with large distances. Note that each is 
visibly a HORIZONTAL line.


That process produced linefind-finds-horizontal-lines-test1.pto

Continuing on from there using the rest of my usual workflow (optimize 
for position, clean control points, optimize everything) produced 
linefind-finds-horizontal-lines-test2.pto.


So, linefind is finding horizontal lines but marking them as vertical lines.

In this particular small panorama, Hugin didn't end up rotating the 
entire panorama 90 degrees. Doing my usual workflow steps on a panorama 
using 11 frames gave me 55 vertical lines, 25 of which were visibly 
horizontal lines, not vertical.


On the larger panorama, I tried changing the large-distance vertical 
lines to horizontal lines; that changed distances from 60-120 to 0-10 
distances. Optimizing for position in with those reported errors of 300. 
Following that with optimize everything without translation gave error 
of 949. Cleaning control points, removing 37 and reoptimizing reduced 
error to 18. That eventually produced a panorama with a tilt toward the 
right on the right hand side. Running the Straighten tool on it produced 
a panorama with vertical alignments on the right side that tilted a bit 
toward the right.


Executive summary:

With Hugin 2016.0.0.3b4e2790cb90 (newest one in Debian Testing), do this 
extra step that wasn't needed in Hugin 2015: Sort control points by type 
and delete all "vertical lines" that are actually horizontal lines. They 
usually have large distances. Changing them to horizontal lines and 
deleting any new horizontal lines that still had larger distances, 
didn't help much. Best to delete the vertical lines found by linefind 
that are actually horizontal lines.


--
David W. Jones
gnomeno...@gmail.com
wandering the landscape of god
http://dancingtreefrog.com

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Re: [hugin-ptx] Re: Control points editor / Line detection / Projection of a single image

[David W. Jones]

On 04/25/2016 04:08 AM, T. Modes wrote:


Am Dienstag, 19. April 2016 05:39:01 UTC+2 schrieb Abrimaal:

*Build 2016: *

The line find routine detects horizontal lines in the images, but
they are listed as vertical. It causes problems with straightening
of panoramas.

linefind searches only for vertical line. Either the orientation of your
images does not match (wrong rotation information) or you rotated the
images in Hugin.
If you don't provide more information, it is impossible to fix it.


I (David) will see about putting together a ZIP file of raw images, 
images converted using RawTherapee, and the resulting PTO after Hugin's 
linefind finds horizontal lines and identifies them as vertical lines.


I have never rotated an image in Hugin. I do that when developing raw 
files (if needed).


I think I have a batch from this past Sunday where all were shot in 
portrait orientation and all displayed properly as portrait in 
RawTherapee AND in Hugin. Yet Hugin's linefind found a number of what it 
called vertical lines (usually with large error values when I look at 
the control point list) that are actually horizontal lines when I look 
at them in the control points windows.


FWIW, I'm using the Hugin from Debian Testing, which they list as 
version 2016.0.0~rc2+dfsg2. About Hugin reports 2016.0.0.3b4e2790cb90.


Note: I am not the original poster who mentioned this problem. I first 
noticed it when I shot a single-row panorama, all images in landscape 
mode, and Hugin rotated the entire panorama 90-deg counter clockwise 
into a vertical panorama. In the course of sorting that out, I noticed 
the "vertical" (as set by linefind) lines that were actually horizontal 
lines in the unrotated images.


I do want it fixed, because dealing with it in Hugin 2016 adds extra 
steps to my workflow that Hugin 2015 didn't. All linefind needs to do is 
correctly mark detected horizontal lines as horizontal lines, rather 
than vertical lines with large errors.


--
David W. Jones
gnomeno...@gmail.com
wandering the landscape of god
http://dancingtreefrog.com

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[hugin-ptx] Re: Control points editor / Line detection / Projection of a single image

[T. Modes]

Am Dienstag, 19. April 2016 05:39:01 UTC+2 schrieb Abrimaal:
>
> *Build 2016: *
>
> The line find routine detects horizontal lines in the images, but they are 
> listed as vertical. It causes problems with straightening of panoramas.
>

linefind searches only for vertical line. Either the orientation of your 
images does not match (wrong rotation information) or you rotated the 
images in Hugin.
If you don't provide more information, it is impossible to fix it.


>
>
> *To change projection of a single image and save it as "panorama".*Detecting 
> horizontal lines or adding them manually, as well as vertical ones could 
> create a perfect equirectangular grid, independently of the lens and 
> projection, at least in the desired area of the image.
>

Using horizontal and vertical lines to rectify an image works only for 
rectilinear projection. In all other projections this make more trouble 
than it helps, so it is not independently form the projection.
 

>
> This can be used for adjustment of the projection and perspective of 
> single images (eg. previously stitched panoramas in other programs, that 
> did not save editable project files). It works with two images, but it 
> doesn't work with a single image - the button Create panorama is inactive.
>

This is possible, but not on the assistant tab. Use the stitcher tab.
 

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