MATLAB: Additional properties from regionprops

Question

Hi all,

I'm using regionprops to extract some properties from a watershed segmentation of polygonal objects in an image. It returns values for the centroid, area, and perimeter of each segmented polygon.

Does anyone know if there's a way to extract specific lengths of the sides of the polygons, rather than just their entire perimeters?

Looking forward to your suggestions!

Thanks!

Best,

Veena

Answer 1

You could also return the "ConvexHull" values which will return a p-by-2 matrix for each polygon where each row of the matrix contains the x- and y-coordinates of one vertex of the polygon. Then you could use pdist() to compute the length of each segment.