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December 2006

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2006.12.05 15:52 "Grayscale, or is it?", by Joris Van Damme
2006.12.05 17:18 "Re: Grayscale, or is it?", by Bob Friesenhahn
2006.12.05 17:34 "Re: Grayscale, or is it?", by Joris Van Damme
2006.12.05 17:45 "Re: Grayscale, or is it?", by Bob Friesenhahn
2006.12.05 18:44 "Re: Grayscale, or is it?", by Joris Van Damme
2006.12.05 22:10 "Re: Grayscale, or is it?", by Frank Warmerdam
2006.12.05 20:37 "Re: Grayscale, or is it?", by Joris Van Damme
2006.12.05 21:16 "Re: Grayscale, or is it?", by Edward Lam
2006.12.05 21:30 "Re: Grayscale, or is it?", by Joris Van Damme
2006.12.05 22:28 "Re: Grayscale, or is it?", by Edward Lam
2006.12.05 22:41 "Re: Grayscale, or is it?", by Jean-yves Le Ridant
2006.12.05 23:13 "Re: Grayscale, or is it?", by Bob Friesenhahn
2006.12.05 23:29 "Re: Grayscale, or is it?", by Phillip Crews
2006.12.06 02:05 "Re: Grayscale, or is it?", by Graeme Gill
2006.12.05 22:56 "Re: Grayscale, or is it?", by Glenn Widener
2006.12.05 23:26 "Re: Grayscale, or is it?", by Toby Thain
2006.12.06 01:58 "Re: Grayscale, or is it?", by Graeme Gill
2006.12.06 04:45 "Re: Grayscale, or is it?", by Edward Lam
2006.12.06 20:56 "Re: Grayscale, or is it?", by Joris Van Damme
2006.12.06 22:19 "Re: Grayscale, or is it?", by Graeme Gill
2006.12.06 23:30 "Re: Grayscale, or is it?", by Joris Van Damme
2006.12.07 01:28 "Re: Grayscale, or is it?", by Graeme Gill
2006.12.07 07:45 "Re: Grayscale, or is it?", by Joris Van Damme
2006.12.06 20:56 "Re: Grayscale, or is it?", by Joris Van Damme
2006.12.06 21:57 "Re: Grayscale, or is it?", by Graeme Gill

2006.12.05 22:28 "Re: Grayscale, or is it?", by Edward Lam

Joris wrote:
> when you read 8bit MinIsBlack greyscale (Photometric 1, otherwise known
> as BlackIsZero and PHOTOMETRIC_MINISBLACK) from TIFF, in order to
> display on a normal sRGB monitor, do you do any non-lineair conversion
> in between decoding and display, or do you just set the R, G, and B
> values directly with the greyscale values as read from the TIFF file?

When I read the spec as you've presented it, I now think option 2 is more 
correct. I'm not dogmatic about it either way.

In practice, I'm lazy and never do implicit gamma correction anyhow, relying on 
the user to decide. (I'm not trying to start another debate here so don't shoot 
me if you think I'm evil incarnate. :)  Everyone should be using linear 32-bit 
floating point files these days right? :)

-Edward