This functions goal is to find a polygon which enclosures a user supplied mask. It's a kind of a complementary of Matlab poly2mask function. The difference is that all contour points are returned- without missing points for linearly related points. In order to get a 100% complementary of poly2mask all points inside straight lines should be omitted. In my case I actually need all those points, as index of ROI.
Combining mask2poly with poly2mask the user can produce a mask from a contour (line with X and Y coordinates), and vise-versa.
Nikolay S. (2021). mask2poly (https://www.mathworks.com/matlabcentral/fileexchange/32112-mask2poly), MATLAB Central File Exchange. Retrieved .
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