image analysis software

[David G. Rhodes - Pharmaceutics, U.T.Austin]

I'm looking for some 'generic' image analysis software.  I only need 
to measure areas and perimeters from b/w images with arbitrary dark
shapes on light bbackground.  I seem to remember a program through
NSF or one of the nat'l labs, but can't remember the details.
Any ideas folks???
respond to RHODES at VAX.PHR.UTEXAS.EDU
Thanks 10^6.