ImageGear for C and C++ on Linux v20.0 - Updated
API Reference Guide > Core Component API Reference > Core Component Enumerations Reference > enumIGEdgeDetectionMethods

These constants define the edge detection methods available.


IG_EDGE_DETECTION_MAXGRADIENT Edge detection using the maxima of gradient, i.e., maxima of the first order derivative.
IG_EDGE_DETECTION_ZEROXC_DERIV2ND Edge detection using the zero-crossings of second order derivative along the gradient.
IG_EDGE_DETECTION_DIFF_RECURSIVE Edge detection using an optimal difference recursive filter.
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