Hello, How extract Maximas from CSS(Curvature Scale Space ) Method of Mokhtarian

The locations of maxima are not readily available and must be extracted from the image (Mokhtarian et al. 1996a). The CSS contours are usually connected everywhere except in a neighbourhood of their maxima. We find the peaks of both branches of a contour in the CSS image and consider the midpoint of the line segment joining the pair as a maximum of the CSS image.