[fudged71]

for DICOM, don't you need some way to do segmentation to get to the data that you actually want?

[chris_va]

Did you mean diffentiating tissue?

Yes, that is true. You can use ISO levels from the images to segment different density regions, which is more or less what a doctor would do, AFAIK.

Usually the entire picture is non-zero, so you have to set a cutoff somewhere in order to get a real blob.