#TOTAL CONFUSION
22-Sep-90 21:09:22
Sb: #630-#TOTAL CONFUSION
Fm: Bill Eastburn 70007,1657
To: Betty Clay/SYSOP 76702,337
It depends on how "busy" the image is, Betty, but I have run GifSCAN on a
number or images and find the GIF file is compressed around 30-50%,
typically, over the bitmap. I have one on one of my disks right now that
is 159k in GIF format, but 774k as a RGB bitmap…….. too big for me to
process in TAD <sigh>. That is a rather unusual amount of compression, but
the image is mostly solid colors on a solid background. On the other side,
I'd expect something like the CF thing (the one that looked like a full
color clambake) Perry did to demonstrate one of his scanlab products to
compress closer to 20%, if that. I have seen some GIF files recompressed
on some local BBS, and the archived file has always been larger than the
GIF file. I have never had the interest to really look into the subject to
see what degree of expansion such a "recompression" would cause.
Bill, K3OZM