plocalmaxima

Computes local maximum values of grayscale image or graph.

Synopsis

plocalmaxima connexity [-m mask] [im_in|-] [im_out|-]

Description

plocalmaxima builds the new image im_out with the local maximum pixels of the input image im_in. The value of the maximum pixel is the same as in the input image. All other pixels are set to 0.

A point is a maximum if no neighbor is greater to it.

For graph, the maxima are computed from the node values.

Parameters

connexity specifies the neighborhood relation (4, 8 in 2D) or (6, 26 in 3D). For graph, this parameter is ignored.

Inputs

im_in: a grayscale image or a graph.

Outputs

im_out: a grayscale image or a graph.

Result

Returns SUCCCESS or FAILURE.

Examples

Locates the local maxima in tangram.pan:

   plocalmaxima 8 tangram.pan a.pan

C++ prototype

Errc MaximaLocaux( const Img2duc &im_in, Img2duc &im_out, int connexity );

Version française

Localisation des points constituant un maximum local.

Author: Régis Clouard