HDR stiching question

[Aperol]

HDR stiching question

by Aperol » Sun Feb 19, 2012 4:49 pm

Hi!
im using canon eos 40d, samyang 8mm fisheye, nn mkII and manfrotto tripod .
i want to try to stich in HDR , but as samyang 8mm fisheye is manual i dont have the exif data. I tried to add the info manually but i tried to followed the tutorial:

http://www.autopano.net/wiki-en/action/view/LDR_/_HDR_-_Workflow_case_E

but when i try to edit the pano, the color correction in HDR mode is disabled and i can't activate it...

any solution?

[meshman]

by meshman » Fri Feb 24, 2012 4:13 pm

the same goes for me, are you using the trial? I am. maybe its a thing thats limited in the trial. though the splashscreen at the begining did not mention that limitation in the trial

[AlexandreJ]

by AlexandreJ » Fri Feb 24, 2012 4:45 pm

Not a trial limit, but a dependance on the input images : if you don't have decodable exif, we cannot activate HDR mode.

[klausesser]

by klausesser » Fri Feb 24, 2012 6:55 pm

if you don't have decodable exif, we cannot activate HDR mode.

That´s a severe shortcoming, Alexandre. Please accept that there are photographers using mixed combinations of body/lenses.
There must be a way to tell the app all parameters of the shooting instead of only relying on EXIFs and get the app work as expected
with these parameters.

best, Klaus

Last edited by klausesser on Fri Feb 24, 2012 6:56 pm, edited 1 time in total.

[leifs]

by leifs » Fri Feb 24, 2012 10:00 pm

Not a trial limit, but a dependance on the input images : if you don't have decodable exif, we cannot activate HDR mode.

what is a "decodable exif" ?
I shoot spheres with some "old" lenses, which results in no lens info in the exif. Does that lead to a "not decodable exif" ?
When I shoot with old lenses using the VRdrive 2 it produces a XML with bracket info.
Does no lens info in the exif, lens and bracket info in the XML activate HDR mode ? (papywizard import)

leifs

<pict id="1" bracket="1">
<time></time>
<position yaw="0.0" roll="90.0" pitch="90.0"></position>
</pict>
<pict id="1" bracket="2">
<time></time>
<position yaw="0.0" roll="90.0" pitch="90.0"></position>
</pict>
<pict id="1" bracket="3">
<time></time>
<position yaw="0.0" roll="90.0" pitch="90.0"></position>
</pict>
<pict id="2" bracket="1">
<time></time>
<position yaw="0.0" roll="90.0" pitch="66.6"></position>
</pict>

and so on

Last edited by leifs on Fri Feb 24, 2012 10:03 pm, edited 1 time in total.

[meshman]

by meshman » Mon Feb 27, 2012 9:05 am

as Klaus said, yes thats a huge shortcoming. We are using a superfisheye lens from sunex caus e its fast on set to get a hdr reading thre torns on the rig and you are done.
http://www.superfisheye.com/SuperFisheye-Lens-Canon
But it strips EXIF data. In ptgui we can merge to HDR without EXIF data but PTGUI is not working on LINUX.
Maybe a dialog to say how many stops between the exposures when the image doesent have exif data could do?

Peter

if you don't have decodable exif, we cannot activate HDR mode.

That´s a severe shortcoming, Alexandre. Please accept that there are photographers using mixed combinations of body/lenses.
There must be a way to tell the app all parameters of the shooting instead of only relying on EXIFs and get the app work as expected
with these parameters.

best, Klaus

[AlexandreJ]

by AlexandreJ » Mon Feb 27, 2012 12:56 pm

issue 1186 opened.

[Marknot]

by Marknot » Sun Mar 11, 2012 2:14 pm

issue 1186 opened.

hello there is a solution? i've the same problem...

[Marknot]

by Marknot » Sun Mar 11, 2012 4:01 pm

I found a "not easy" soluction, but with this free program http://albumshaper.sourceforge.net/index.shtml it possible to add the F/stop value but one image at time ...
so, the best way it's add this possibility as the focal mm...

[a a gruntpuddock]

by a a gruntpuddock » Sun Mar 11, 2012 4:33 pm

Some info about free programsto batch modify your exif data, one of these might help - http://www.exifer.friedemann.info/

Also here - http://www.colorpilot.com/exif.html

[Marknot]

by Marknot » Mon Mar 12, 2012 12:32 pm

Thanks, but i think that the best way now it's create the 3 panorama (-2 , 0, +2) and after merge it with software like photomatix...

[DrSlony]

by DrSlony » Mon Mar 12, 2012 9:54 pm

If you're a Linux user, you most likely already have one or both of the following programs, both of which can write the needed tags:
Exiv2
ExifTool

[Marknot]

by Marknot » Mon Mar 12, 2012 10:02 pm

They can in batch mode?:rolleyes:

[AlexandreJ]

by AlexandreJ » Tue Mar 13, 2012 9:14 am

Note : this issue has been addressed in latest beta (2.6.2 RC4). If you edit image properties in autopano, then you can have access to HDR mode even without exif in input image.

[Marknot]

by Marknot » Tue Mar 13, 2012 9:55 am

Note : this issue has been addressed in latest beta (2.6.2 RC4). If you edit image properties in autopano, then you can have access to HDR mode even without exif in input image.

Hi, i'm trying the latest beta but i've the same problem, panorama shot with 3 exposure ( brackets ), create the N block, it give me F0.0 ( from my exif of samynag 8mm ), and the option HDR is grey again, there is a new tutorial to do this thanks so much!

[AlexandreJ]

by AlexandreJ » Tue Mar 13, 2012 10:02 am

Open the image properties (http://www.autopano.net/wiki-en/action/view/Autopano_Giga_-_Main_Window_-_Image_Properties ), select all images, enter a value in aperture column ( for example 8.0 ). Redect the panorama, and it should be okay.

[Marknot]

by Marknot » Tue Mar 13, 2012 10:16 am

THANKS!!!!

[jeradg]

by jeradg » Tue Mar 13, 2012 7:59 pm

I wish this came out 2 months ago =[ and I wish I would have seen this post a few hours ago.

[Marknot]

by Marknot » Tue Mar 13, 2012 9:40 pm

I wish this came out 2 months ago =[ and I wish I would have seen this post a few hours ago.

I think you have sold the samyang and bought a new lens with af?:)

[jeradg]

by jeradg » Tue Mar 13, 2012 11:19 pm

Combining this post topic with another I saw today, I attempted to create a pano by using a different program (Adobe Photoshop CS5) to create the HDR images, and I loaded the images into Autopano. The detection worked fine, but even doing that I'm unable to use HDR color correction. I will try to enter some aperture, try again, and update this post. (successful or not, loading hdr images should allow for hdr color correction in my opinion).

[jeradg]

by jeradg » Tue Mar 13, 2012 11:20 pm

I wish this came out 2 months ago =[ and I wish I would have seen this post a few hours ago.

I think you have sold the samyang and bought a new lens with af?:)

I am using a Nikon D5100 and Bower 8mm Fisheye btw.

[Simon Wicker]

by Simon Wicker » Wed Mar 14, 2012 11:14 am

Combining this post topic with another I saw today, I attempted to create a pano by using a different program (Adobe Photoshop CS5) to create the HDR images, and I loaded the images into Autopano. The detection worked fine, but even doing that I'm unable to use HDR color correction. I will try to enter some aperture, try again, and update this post. (successful or not, loading hdr images should allow for hdr color correction in my opinion).

i'm not an expert but according to the wiki (and my own limited testing) if you are using HDR images as your input then you don't need any colour correction and you should set this to None.

cheers, simon w.