[Insight-users] Moravec interest point detector

[Zachary Pincus]

Jian,

You might want to look at the Canny edge detector class in ITK.
http://www.itk.org/Doxygen/html/ 
classitk_1_1CannyEdgeDetectionImageFilter.html

You should have been able to find this class on your own by searching  
the ITK class list page, or the class directories on your own computer,  
for the term "Edge."

Before you start with the Canny filter, I strongly suggest reading up  
on how precisely it works. See, for example:  
http://www.cee.hw.ac.uk/hipr/html/canny.html or  
http://www.pages.drexel.edu/~weg22/can_tut.html (These are the first  
two hits for "Canny edge" on Google.)

Usage tip: make sure to set a threshold for the Canny edge detector.  
Not doing so defeats the whole purpose and you won't get good edges.

Zach Pincus

Department of Biochemistry and Program in Biomedical Informatics
Stanford University School of Medicine