H-maxima transform

In mathematical morphology, the h-maxima transform is a morphological operation used to filter local maxima of an image based on local contrast information.

First, all local maxima are defined as connected pixels in a given neighborhood with intensity level greater than pixels outside the neighborhood.

lower or equal to a given threshold are suppressed.

The height f of the remaining maxima is decreased by

The h-maxima transform is defined as the reconstruction by dilation of