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HxAddGaussianNoise.h File Reference

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Functions

HxImageRep L_HXIMAGEREP HxAddGaussianNoise (HxImageRep im, double mean, double stdev)
 Add Gaussian noise to an image. More...

Detailed Description

Function Documentation

HxImageRep L_HXIMAGEREP HxAddGaussianNoise (  HxImageRep    im,
double    mean,
double    stdev
) 
 

Add Gaussian noise to an image.

Numerical Recipes in C, 2nd edition, Cambridge University Press, Cambridge, 1992. 

00028 {
00029     HxSizes sz = im.sizes();
00030     HxTagList   tags;
00031     HxAddTag(tags, "size", sz);
00032     HxAddTag(tags, "seed", -3);
00033     HxAddTag(tags, "mean", mean);
00034     HxAddTag(tags, "stdev", stdev);
00035 
00036     HxImageRep noiseIm =  HxImageFactory::instance().fromNamedGenerator(
00037             HXIMAGESIG2DDOUBLE, "gaussianNoise", tags);
00038 
00039     noiseIm = HxMulVal(noiseIm, HxPixMax(im));
00040 
00041     return HxAdd(noiseIm,im);
00042 
00043 //  return HxMul(im, noiseIm);
00044 }

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