Cross Reference: /external/ImageMagick/MagickCore/gem.c

Lines Matching defs:noise
1458 %  GenerateDifferentialNoise() generates differentual noise.
1469 %    o pixel: noise is relative to this pixel value.
1471 %    o noise_type: the type of noise.
1473 %    o attenuate:  attenuate the noise.
1491     noise,
1500       noise=(double) (pixel+QuantumRange*SigmaUniform*(alpha-0.5));
1515       noise=(double) (pixel+sqrt((double) pixel)*SigmaGaussian*sigma+
1522         noise=0.0;
1525           noise=(double) QuantumRange;
1527           noise=(double) pixel;
1535             noise=(double) (pixel-QuantumRange);
1537             noise=(double) (pixel+QuantumRange*SigmaLaplacian*log(2.0*alpha)+
1543         noise=(double) (pixel+QuantumRange);
1545         noise=(double) (pixel-QuantumRange*SigmaLaplacian*log(2.0*beta)+0.5);
1554       noise=(double) (pixel+pixel*SigmaMultiplicativeGaussian*sigma*
1572       noise=(double) (QuantumRange*i/SigmaPoisson);
1577       noise=(double) (QuantumRange*SigmaRandom*alpha);
1581   return(noise);
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