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2006.12.05 17:18 "Re: [Tiff] Grayscale, or is it?", by Bob Friesenhahn
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2006.12.05 17:34 "Re: [Tiff] Grayscale, or is it?", by Joris Van Damme
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2006.12.05 17:45 "Re: [Tiff] Grayscale, or is it?", by Bob Friesenhahn
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2006.12.05 18:44 "Re: [Tiff] Grayscale, or is it?", by Joris Van Damme
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2006.12.05 22:10 "Re: [Tiff] Grayscale, or is it?", by Frank Warmerdam
- 2006.12.05 20:37 "Re: [Tiff] Grayscale, or is it?", by Joris Van Damme
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2006.12.05 22:10 "Re: [Tiff] Grayscale, or is it?", by Frank Warmerdam
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2006.12.05 18:44 "Re: [Tiff] Grayscale, or is it?", by Joris Van Damme
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2006.12.05 17:45 "Re: [Tiff] Grayscale, or is it?", by Bob Friesenhahn
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2006.12.05 17:34 "Re: [Tiff] Grayscale, or is it?", by Joris Van Damme
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2006.12.05 22:56 "[Tiff] Re: Tiff Digest, Vol 31, Issue 3", by Glenn Widener
- 2006.12.05 23:26 "Re: [Tiff] Re: Tiff Digest, Vol 31, Issue 3", by Toby Thain
- 2006.12.06 01:58 "Re: [Tiff] Re: Tiff Digest, Vol 31, Issue 3", by Graeme Gill
- 2006.12.06 20:56 "[Tiff] Re: Grayscale, or is it?", by Joris Van Damme
- 2006.12.06 21:57 "Re: [Tiff] Grayscale, or is it?", by Graeme Gill
2006.12.05 23:13 "Re[2]: [Tiff] Grayscale, or is it?", by Bob Friesenhahn
> From the extract from the spec you have posted, I understand "linear" at his usual meaning in most papers from CIE or ICC, that is, linear combination of XYZ so at gamma 2.2 distance of sRGB, 1.8 from Apple, 3.0 of L....
That's entertainement :-)
It is true that the notion of "linear" is not well defined. A video engineers notion of "linear" differs from the 3D renderer's notion of "linear". To the broadcast engineer, gamma corrected video can be considered "linear" since each quantization step is proportionally brighter to the human viewer. But for purposes of rendering and sensing, "linear" means "linear light".
Bob
======================================
Bob Friesenhahn
bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/