The free Java program ImageJ was developed for medical research applications, and can be used to count "blobs" in an image. I've used it for counting shrubs in aerial photographs.
The program is available from: http://rsb.info.nih.gov/ij/ and there's a tutorial for counting things at: http://links.baruch.sc.edu/scael/notebook/imagej_counts/counts.html It isn't completely automatic, but much, much faster than doing it manually. I don't know, though, how well it will work with masses of blobs a la frog eggs, compared to discrete blobs like bacterial clusters. Sarah On 6/19/06, James Vonesh <[EMAIL PROTECTED]> wrote: > Dear eco-loggers, > > Can anyone recommend a cheap way to scan digital images to estimate the > number of similar sized/colored objects in the photo? I have digital photos > of frog eggs, and I'd like to streamline the counting process. I know there > is expensive software that can do this. Any free/shareware? > > Thanks > > James -- Sarah Goslee
