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September 2006

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2006.09.15 12:38 "alpha in Grayscale or Palette", by Anurag Singh
2006.09.15 15:49 "Re: alpha in Grayscale or Palette", by Gerben Vos
2006.09.15 17:37 "Re: alpha in Grayscale or Palette", by Bob Friesenhahn
2006.09.15 17:46 "Re: alpha in Grayscale or Palette", by Ed Grissom
2006.09.15 17:54 "Re: alpha in Grayscale or Palette", by Bob Friesenhahn
2006.09.16 20:01 "Re: alpha in Grayscale or Palette", by Joris Van Damme
2006.09.16 20:47 "Re: alpha in Grayscale or Palette", by Bob Friesenhahn
2006.09.16 21:50 "Re: alpha in Grayscale or Palette", by Joris Van Damme
2006.09.16 22:00 "Re: alpha in Grayscale or Palette", by Toby Thain
2006.09.16 22:18 "Re: alpha in Grayscale or Palette", by Joris Van Damme
2006.09.16 22:20 "Re: alpha in Grayscale or Palette", by Toby Thain
2006.09.16 22:38 "Re: alpha in Grayscale or Palette", by Joris Van Damme
2006.09.17 02:07 "Re: alpha in Grayscale or Palette", by Graeme Gill
2006.09.17 08:49 "Re: alpha in Grayscale or Palette", by Joris Van Damme
2006.09.17 09:03 "Re: alpha in Grayscale or Palette", by Joris Van Damme
2006.09.17 10:39 "Re: alpha in Grayscale or Palette", by Graeme Gill
2006.09.17 17:23 "Re: alpha in Grayscale or Palette", by Joris Van Damme
2006.09.18 01:35 "Re: alpha in Grayscale or Palette", by Graeme Gill
2006.09.18 09:40 "Re: alpha in Grayscale or Palette", by Joris Van Damme
2006.09.18 14:39 "Re: alpha in Grayscale or Palette", by Gerben Vos
2006.09.16 09:58 "Re: alpha in Grayscale or Palette", by Anurag Singh
2006.09.18 11:23 "Re: alpha in Grayscale or Palette", by Gerben Vos
2006.09.18 11:06 "Re: alpha in Grayscale or Palette", by Gerben Vos

2006.09.16 22:38 "Re: alpha in Grayscale or Palette", by Joris Van Damme

Toby,

Toby Thain wrote:
> I'll postpone worrying about the more general case until I meet
> it in real life. :)

That's what I thought, until I met it as a real life part of a PNG test
suite. So now I'm considering postponing worrying about it until I meet
a second such image... ;-)

I think we all agree that such imagery is weird, though, at the very
least. It's not common, either. How did we actually arrive at the
subject? Was I drifting off-topic, or did the original question include
this case? If the latter is the case, I think we all agree best is to
avoid writing such stuff, even if it could perhaps be possible in TIFF
depending on your take on the Indexed tag, and it certainly is possible
in PNG.


Best regards,

Joris Van Damme
info@awaresystems.be
http://www.awaresystems.be/
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