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[rew <687393@xxxxxxxxxxxxxxxxxx>]

Sean, Feel free to Email them to me. Click on my name to go to my
profile, and then don't use the sourceforge address...

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https://bugs.launchpad.net/bugs/687393

Title:
  When HDR merging bracketed photos, EXR appears white in most apps

Status in Hugin - Panorama Tools GUI:
  New

Bug description:
  I've been struggling with this for a few days now, and finally decided to log a bug. I'm attempting to merge together three JPG's taken with my Nikon D5000 using bracketed exposure values. I found some tips and instructions on merging into a single HDR, and I think I have the process correct. I was using the 2010.2 version initially, but since upgraded to the latest dev beta, 2010.4 beta 2. The stitching page looks a bit better, but the results are the same.

My process:
1. Load images
2. Set control points
3.Optimize only position / view (the default "wizard" settings mess up the alignment)
4. Optimize FOV / crop
5. Generate "High Dynamic Range Merged Stacks"

So.. I also have the latest Luminance HDR 2.0.2 as well as Photoshop CS4 with the latest available EXR plugin. I also have Piturenaut 3.0 for HDR processing. When I open either the intermediate or the final stacked HDR file that was generated with Hugin, the entire thing appears all white in Photoshop. When I attempt to open it with Luminance HDR, it crashes Luminance.

Fortunately, I found that I can open the generated EXR in Picturenaut and then re-save the EXR from there to process it with Luminance. This is an annoying workaround, but at least it works!

I suspect this is a bug in hdr_merge... possibly to do with the EXR libraries..

Best regards,
-Sean

PS. If you would like a copy of the photos I'm merging, let me know the best way to send them over.

Additional info:
System: Windows 7 Ultimate 32 bit w/ 3 GB of RAM