MATLAB: Contour of BW Image –> correlation/pearson to another contour

Question

Hello there

I have a BW image of a human figure. I want to extract a contour of this silhouette, a line. I want to use this contour in order to compare it with a database of contours with correlation or Pearson method.

This image is taken from a camera, which means that the templates will not be necessarily the same size as the contour we extract from it. Can you use correlation and pearson with different sizes?

Answer 1

If you have a binary image, BW, then you can use bwperim() or bwboundaries() to get the "contour" or outer perimeter of the shape.