seb3@GTE.COM (Steve Belczyk) (07/14/90)
In case anyone is interested, I've just submitted the following programs
to comp.sources.misc. They convert between two Atari image file formats
and Jef Poskanzer's pbmplus format:
pi1toppm.c -- Reads low-resolution Degas and writes ppm
ppmtopi1.c -- Reads ppm and writes Low-resolution Degas
spctoppm.c -- Reads compressed Spectrum 512 and writes ppm
sputoppm.c -- Reads uncompressed Spectrum 512 and writes ppm
ppmtospu.c -- Reads ppm and writes uncompressed Spectrum 512
I wrote these originally on an Amiga (don't shoot!). They should
compile just fine on any Un*x platform. I haven't used C on the ST for
a while, but I imagine they should compile easily enough.
If you are unfamiliar with pbmplus, it is a wonderful graphics
manipulation package, written by Jef Poskanzer, which, in addition to
being able to read and write many different image formats, can perform
many useful manipulations such as scaling, rotation, etc. For more
information on pbmplus, check the frequently-asked questions article in
comp.graphics.
Steve Belczyk CIS: 75126,515 BBS: +1 508 664-0149 (2400 bps)
seb3@gte.com GEnie: sbelczyk UUCP: {harvard,vaxine}!bunny!seb3