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From: jet@karazm.math.uh.edu (J. Eric Townsend)
Newsgroups: comp.sys.amiga
Subject: Use pbmplus (was Re: FBM and The Art Department
Keywords: IFF, pictures
Message-ID: <1990Nov8.064936.13376@lavaca.uh.edu>
Date: 8 Nov 90 06:49:36 GMT
References: <16401@netcom.UUCP>
Sender: nntppost@lavaca.uh.edu (NNTP Posting Service)
Organization: University of Houston -- Department of Mathematics
Lines: 27

In article <16401@netcom.UUCP> barry@netcom.UUCP (Kenn Barry) writes:
>someone: the FBM utility, 'fbcat', can translate other picture formats
>into IFF, but if the number of colors is too high, the results are not
>generally useful. If, for example, you translate a 256-color GIF picture
>to IFF with 'fbcat', you'll get an 8-plane IFF picture, and Amigas don't
>have 8 bitplanes.

Get Jef Poskanzer's pbmplus package.  It's way cool.

Do this (under unix):
giftoppm foo.gif | ppmtoilbm > foo.ilbm

Or this:
ilbmtoppm foo.ilbm | ppmquant 256 | ppmscale -yscale 1.1 \
 | ppmtogif > foo.gif

There's also a 24bit iff filter recently written (distribute it *soon*,
Jef) along with a half dozen other converters for just_about_any_format
to/from ppm (portable pixel maps), pgm (port. grey map) or
pbm (portible bit map).

(Commercial over. :-)
--
J. Eric Townsend     Internet: jet@uh.edu    Bitnet: jet@UHOU
Systems Manager - University of Houston Dept. of Mathematics - (713) 749-2120
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