PST or Phase Stretch Transform is an operator that finds features in an image. PST implemented using MATLAB here, takes an intensity image I as its input, and returns a binary image out of the same size as I, with 1's where the function finds sharp transitions in I and 0's elsewhere.
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Updated
Apr 25, 2018 - Python
Lets try to restructure the documentation a bit. The following list is preliminary and will be changed according to discussion and work progress. Everybody is invited to contribute.