[TriLUG] Image scaling utility

[jeffj at ro.com]

I'm looking for a command line utility I can't seem to find. I want a 
program that takes a bunch of JPEG images, scales them from 720x480 to 
640x480, and writes out another JPEG image with a specified amount of 
compression. So far, the closest utility I can find assumes that the 
ratio of the width in pixels to the hieght in pixels is to remain 
constant, but that isn't what I want.

Any suggestions?

-- 
Jeff Jackowski
http://ro.com/~jeffj/