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Article #1975

Re: 24bit/pixel

#1975
From: Tom Limoncelli
Date: Fri, 03 Nov 1989 16:11
32 lines
1844 bytes
In article <932@mit-amt.MEDIA.MIT.EDU> ralph@atrp.mit.edu (Ralph L. Vinciguerra) writes:
[deleted]
> I'd
> also like to here of any extensions to IFF to allow 24-bit truecolor
> (or even more, like Landsat images) storage.

I was told that at the last DevCon, C-A officially adopted ASDG's
24-bitplane IFF format (they worked together to iron out
the specifics).

> I'm thinking of defining an alternate to ILBM chunks which
> allow non-bitplane interleaved image storage (like perhaps line interleaved
> instead).

That's called "chunky" bitmaps, and it's usually done on a per-pixel
basis.  It is *much* easier for a program to work with if one is doing
internal calculations.  At DevCon, C-A officially adopted a chunky
bitmap IFF spec (which was co-developed by ASDG & C-A)

(DISCLAIMER:  I'm not associated with ASDG or C-A and I wasn't at
DevCon, but this is what I recall from some net (and non-net)
summaries of the last DevCon.  I'm sure I'll be flameboyantly
corrected for any discrepancies :-))
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Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!uwm.edu!cs.utexas.edu!rutgers!njin!limonce
From: limonce@pilot.njin.net (Tom Limoncelli)
Newsgroups: comp.sys.amiga.tech
Subject: Re: 24bit/pixel
Keywords: IFF 24-bits truecolor
Message-ID: <Nov.3.11.11.45.1989.8156@pilot.njin.net>
Date: 3 Nov 89 16:11:45 GMT
References: <5342@spudge.UUCP> <932@mit-amt.MEDIA.MIT.EDU>
Distribution: na
Organization: Drew University/NJIN
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