[Openexr-user] Re: How to combine multiple exposed images? (Josef Grunig)

[L.Yimm]

Hi Josef,

Well....you've asked a question that could fill volumes with an
answer, but the basic idea is that you take a series of images that
are shot at differing exposures (changing the shutter speed NOT the
aperture, which causes focus problems) and combine them into one 32
bit high dynamic range image.

There are two pieces of free software that you can use to build an
HDR image from multiple exposures:

Greg Ward's Photosphere available for OSX here: http://www.anyhere.com/

and

Paul Debevec's HDR Shop V1 which runs on Windows available here:
http://www.hdrshop.com/

The new version of Photoshop CS will also assemble HDR images....and
there is a newer version of HDR Shop V2...but you will need to
purchase both of these programs.


The HDR Shop website has a really great set of tutorials on the
how/what/why of HDR images, I'd start there. And then if you want
to get into the application and use of HDRI and Image-based
Lighting: there's an amazing amount of reading material on Paul
Debevec's site: http://www.debevec.org/

This should give you a good start.

Lisa

Hi to all,
I'm a newbye to OpenEXR and would like to create my first HDR image.
I've read that a way of creating HDR images is assembling multiple
exposed (with different f-stops) images. I didn't find how this
"combining" has to be done. Can you tell me more?
Thanks a lot!
--
Josef Grunig
www.blending-life.org

[Florian Kainz]

Joseph,

you may find this paper on Paul Debevec's web site interesting:
http://www.debevec.org/Research/HDR/debevec-siggraph97.pdf

[Josef Grunig]

Post by Florian Kainz
Joseph,
http://www.debevec.org/Research/HDR/debevec-siggraph97.pdf

[Chris Cox]

Post by L.Yimm
The new version of Photoshop CS will also assemble HDR images....and
there is a newer version of HDR Shop V2...but you will need to
purchase both of these programs.

Photoshop CS2, and it's been shipping since March.

Chris