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HxCannyEdgeMap.h File Reference

#include "HxImageRep.h"

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Functions

HxImageRep L_HXIMAGEREP HxCannyEdgeMap (HxImageRep img, double sigma)

Computes the Canny edge map of a scalar image. More...

Detailed Description

Function Documentation

HxImageRep L_HXIMAGEREP HxCannyEdgeMap ( HxImageRep img,

double sigma

)

Computes the Canny edge map of a scalar image.
The result is a vector image.

00016 { 00017 int minSize = HxImageMinSize(img); 00018 00019 HxImageRep gauss0 = HxMakeGaussian1d(sigma, 0, 4.0, minSize); 00020 HxImageRep gauss1 = HxMakeGaussian1d(sigma, 1, 4.0, minSize); 00021 00022 HxImageRep Ix = img.genConvSeparated(1, gauss1, gauss0, "mul", "addAssign", 00023 HxImageRep::ARITH_PREC); 00024 HxImageRep Iy = img.genConvSeparated(1, gauss0, gauss1, "mul", "addAssign", 00025 HxImageRep::ARITH_PREC); 00026 00027 return HxMakeFrom2Images(Ix, Iy); 00028 }

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Functions
HxImageRep L_HXIMAGEREP	HxCannyEdgeMap (HxImageRep img, double sigma)
	Computes the Canny edge map of a scalar image. More...