feature extraction

Is there anybody knows the appropriate thresholds for features like solidity,eccentricity and extent for mammogram mass detection?

Answer 1

[Image Analyst]

Look for algorithms here http://iris.usc.edu/Vision-Notes/bibliography/contentsmedical.html#Medical%20Applications,%20CAT,%20MRI,%20Ultrasound,%20Heart%20Models,%20Brain%20Models if you (or anyone) is still interested.