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[Openexr-user] Luminance range in HALF
From: |
Jack Mak |
Subject: |
[Openexr-user] Luminance range in HALF |
Date: |
Fri, 25 Jan 2008 12:10:20 -0800 |
Hi experts,
I have a question about the luminance range in EXR HALF format. As I
understand, the luminance range of human vision is from 10 ^ -6 to 10
^ 8 cd/m^2. However, the range of HALF is around 10 ^ -3 to 10 ^ 5
(positive), which cannot cover the whole real luminance range. How
does EXR deal with this issue? Any references I could look up?
Cheers,
Jack
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