24-bit color - quality?!

Susan Grupe x???? (mailto:ALISG@AUGUSTANA.EDU)
Mon, 20 Mar 1995 11:18:28 CST

Message-Id: <mailto:199503201723.LAA05514@library.wustl.edu>
Date:         Mon, 20 Mar 1995 11:18:28 CST
From: Susan Grupe x???? <mailto:ALISG@AUGUSTANA.EDU>
Subject:      24-bit color - quality?!
To: Multiple recipients of list IMAGELIB

Now that our WWW server is up for the public to see, we've come up
with a frustrating situation. I scan in images (mostly color and
black and white photographs) in "millions of colors" (24-bit) using
Ulead Systems' ImagePals 2 and an HP ScanJet IIcx. Then, using
ImagePals, I convert the images to 256 (8-bit) color, and save them
in .GIF format. They look great on our monitor (which is set up in
"millions of colors" 24-bit) in either format (24-bit or 8-bit) when
viewed individually. When others view them on monitors set for 256
colors, however, the images turn grainy, and areas which were solid
color fills become blotchy.

Could someone explain why this happens? Would converting to JPEG, or another file format, help solve this problem, or will we have to rescan images in a different format?

Thanks, Susan

Susan Grupe Augustana College Library Rock Island IL 61201 mailto:alisg@augustana.edu