Re: [hugin-ptx] 2015.0 rc1 released

[Stefan Peter]

Am 13.06.2015 um 09:36 schrieb T. Modes:
> Hi all,
>
> since the release of beta2 some bugs were reported and fixed.
> Today we are release release candidate 1 of Hugin 2015.0
>

Hi All

Please find packages of hugin 2015.0 rc1 for Ubuntu 14.04 (Trusty),
14.10 (Utopic), 15.04 (Vivid) and 15.10 (Wily) in the Hugin PPA
Packagers "next Hugin Build" at
https://launchpad.net/~hugin/+archive/ubuntu/next/+packages

As always these packages are based on the Debian PhotoTools Maintainers
work, namely Andreas Metzler: Thank you guys!

Installation instructions:
Open a terminal window and issue the following command:

sudo add-apt-repository ppa:hugin/next

The title of the PPA and the key used to sign it will be displayed. You
will have to confirm the inclusion of this PPA to the package sources of
you system by pressing enter.

Afterward, you can update you system using the commands

sudo apt-get update
sudo apt-get upgrade

or whatever other method you prefer to update your system.

The same is explained at
https://launchpad.net/~hugin/+archive/ubuntu/next/
when you click 'Read about installing' under the title "Adding this PPA
to your system"


As a side note, I recommend to add the "latest Hugin builds" PPA at the
same time because there you will eventually get the final release. The
command for this PPA is:

sudo add-apt-repository ppa:hugin/hugin-builds

If you run into a show stopper and need to go back to your old hugin
version, issue these commands in a terminal window:

sudo apt-get purge hugin
sudo add-apt-repository -r ppa:hugin/next
sudo apt-get install hugin


Please send bug reports to this list or use
https://bugs.launchpad.net/hugin/+filebug
to report a bug.

Thank you very much for your participation.

Cheers

Stefan Peter


-- 
A list of frequently asked questions is available at: 
http://wiki.panotools.org/Hugin_FAQ
--- 
You received this message because you are subscribed to the Google Groups 
"hugin and other free panoramic software" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to hugin-ptx+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/hugin-ptx/557EEC9C.3020909%40swissonline.ch.
For more options, visit https://groups.google.com/d/optout.

Re: [hugin-ptx] How to reproject equirectangular image correctly?

[Jim Watters]

Christopher,

If you have seams where the original image met it might mean you have some 
default values for lens distortion and sensor shift. a,b,c,d,e,f,g should all be 0


Jim

On 2015-06-13 11:28 AM, Christopher Bruns wrote:
I want to reproject some aerial equirectangular images taken with a Ricoh 
Theta camera. I want to rotate the images to a particular orientation, then 
write the image back out as a new equirectangular image of the same size, but 
with a different orientation.


Here is what I have tried:
* run Hugin.
* Select "Add images..." and load my (already perfectly stitched) 
equirectangular image.

* Select "Equirectangular" as the Lens type.
* Select "Fast Preview Panorama".
* Select the "Move/Drag" tab in the panorama viewer window.
* Drag the image around until a) the horizon is perfectly level, and b) my 
desired reference point is horizontally centered in the image.

* Select the "Stitcher" tab in the stitcher window.
* Select Equirectangular projection
* Select 3584x1792 (the original image size) as the canvas size
* Select "Remapped Images"->"No exposure correction, low dynamic range"
* Click "Stitch"

But the resulting image has a dramatic exposure discontinuity seam, at the 
location where the original image left/right edges were, i.e. at the seam 
between the original horizontal +180/-180 degree boundary. What should I try 
next, to avoid this seam?


Is there another program I should use to perform this sort of reprojection 
from equirectangular to equirectangular?


--
Jim Watters
http://photocreations.ca

--
A list of frequently asked questions is available at: 
http://wiki.panotools.org/Hugin_FAQ
--- 
You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group.

To unsubscribe from this group and stop receiving emails from it, send an email 
to hugin-ptx+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/hugin-ptx/557ED42F.5010808%40photocreations.ca.
For more options, visit https://groups.google.com/d/optout.

Re: [hugin-ptx] Re: How to reproject equirectangular image correctly?

[Christopher Bruns]

A larger image works for me too; I upsampled each image from 3584x1792 to 
4096x2048 before processing in Hugin, figuring that power-of-2 dimensions 
would be the very safest. And the rotated images came out perfect. Thus I 
was able to complete my workflow and process about 20 images in my current 
project. So my needs are satisfied, now that I inserted this upsample step 
in my workflow.

I don't have the PTO file under my fingers at the moment. I will try to 
upload it later.

Cheers,
Christopher

On Sunday, June 14, 2015 at 5:11:44 PM UTC-4, Cartola wrote:
>
> It looks really strange. I usually do that with bigger images with no 
> problem (12000x6000 usually). I also usually don't touch enblend options.
>
> Maybe you can make available for us your PTO hugin file and one original 
> image for testing. (don't attach). The difference from your steps is that I 
> usually don't stitch the remapped images, I go for the default option, 
> which uses enblend. The remapped images only transform originals with nona.
>
> Cheers,
>
>
> Carlos E G Carvalho (Cartola)
> http://cartola.org/360
> http://www.panoforum.com.br/
>
> 2015-06-14 9:56 GMT-03:00 Christopher Bruns  >:
>
>>
>>
>> On Sunday, June 14, 2015 at 4:29:15 AM UTC-4, dex Otaku wrote:
>>>
>>> Hi Christopher,
>>> You might improve this by using the --wrap option of enblend.  Add 
>>> --wrap to the enblend parameters on the stitch page in the main hugin 
>>> window.  
>>> See also: panini-renderer; search for 'panini' on sourceforge.  That 
>>> tool might let you rotate and rerender more easily*.
>>>
>>>
>> Thank you Dex for the helpful advice. "--wrap" looks like just the sort 
>> of thing for this sort of problem, especially since "--wrap=horizontal" is 
>> the default and correct parameter to --warp for this situation.
>>
>> Unfortunately, embarrassingly, it seems I asked the wrong question. I 
>> turns out that the "exposure discontinuity" I complained about, is rather a 
>> consequence of the fact that the leftmost and rightmost ~40 pixels of my 
>> input image are ignored from each edge. On a hunch, I resized my 3584x1792 
>> input image to 2048x1024, ran the same process in hugin, and got a 
>> beautiful perfect reprojected image out. Thus I suspect something in the 
>> process is silently grumpy about the 3582x1792 image size. I will 
>> investigate this some more.
>>
>>  -- 
>> A list of frequently asked questions is available at: 
>> http://wiki.panotools.org/Hugin_FAQ
>> --- 
>> You received this message because you are subscribed to the Google Groups 
>> "hugin and other free panoramic software" group.
>> To unsubscribe from this group and stop receiving emails from it, send an 
>> email to hugin-ptx+...@googlegroups.com .
>> To view this discussion on the web visit 
>> https://groups.google.com/d/msgid/hugin-ptx/c4a8cf40-e134-429f-9482-7e27e1a4f6ce%40googlegroups.com
>>  
>> 
>> .
>>
>> For more options, visit https://groups.google.com/d/optout.
>>
>
>

-- 
A list of frequently asked questions is available at: 
http://wiki.panotools.org/Hugin_FAQ
--- 
You received this message because you are subscribed to the Google Groups 
"hugin and other free panoramic software" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to hugin-ptx+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/hugin-ptx/c057402f-2b8a-4547-a1f1-0e96bc56955d%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.