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Author Topic: HDR Panorama workflow hints?  (Read 355 times)
scottcoulter
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« on: December 01, 2008, 09:39:53 AM »

I would love input from anybody who has created HDR panoramas.

I have captured a 7x7 series (7 bracketed exposures at 7 panning positions) of the Atlanta skyline at night.
The wide view from the same location can be seen in my flickr stream here:
http://www.flickr.com/photos/scottcoulter/3062197851/

I googled and attempted to follow the instructions that I have found for using Hugin,
but so far have had bad outputs and/or crashes.  I should note that I'm strictly a free/open source
software user as far as photo post-pro: GIMP, Qtpfsgui, Hugin, etc., so anything related to PS or
Photomatix won't help me right at the moment.

What I initially attempted to do (following some directions that I have bookmarked on my other
computer) is to use Qtpfsgui to combine the exposures at each position and save them out as
an HDR file (i.e., no tonemapping, just combine the exposures), then read those 7 HDR files into
Hugin to do the panorama splicing, then save that back out (still HDR) and bring it back into
Qtpfsgui to tonemap.  So far, all my attempts at doing this with various file types have failed
at some point along the way.

Would love to share ideas and experiences with anybody else who is interested in this topic.
In fact, if you're successfully using Hugin for anything, I'd be interested in your experiences.
Seems like there aren't many tutorials out there for Hugin workflow yet.

--sdc
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BruinCub
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« Reply #1 on: December 01, 2008, 10:50:32 AM »

What do you mean by failed?

I've been actually thinking about HDR panos for a while now, but haven't actually had time to experiment. I also don't have PS so I'll look at some of the open-source programs you listed as well as others.

I have some vacation time coming this month so I'll try to sit down and stitch [insert rimshot  Wink] a working workflow together if someone else doesn't have one already.
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- Daniel
scottcoulter
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« Reply #2 on: December 01, 2008, 08:24:56 PM »

I cannot remember now exactly what I did, but I know that the first batch of files that I output from Qtpfsgui could not be opened by Hugin, so I had to pick the other hdr-format output file.  And then at one point Hugin actually locked up and I couldn't kill it until I rebooted my PC.  If I can get back to the original instructions that I was trying to follow, I'll run through it all again and take notes this time.
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