Non-Maxima Suppression

The Non-Maximum Suppression (NMS) module will set all pixels in the current neighborhood window that are lower than the maximum value in that window to zero (or black). The module is similar to the Max Filter in that the maximum value for the specified window size (or current ROI area) is calculated. The current pixel is then compared to this maximum value. If lower it is set to black otherwise the value is unchanged.

Non-Maximum Supression is a useful processed after other filters that produce a feature space image (see Hough Transform) and the tops or troughs of the created image need to be isolated as they may indicate the presence of significant feature types in an image.


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