Searched refs:eigenvalue (Results 1 - 4 of 4) sorted by relevance
| /third_party/ffmpeg/libavutil/ |
| H A D | pca.c | 80 int ff_pca(PCA *pca, double *eigenvector, double *eigenvalue){ in ff_pca() argument
96 eigenvalue[j]= pca->covariance[j + j*n]; in ff_pca()
111 if(eigenvalue[j] > maxvalue){ in ff_pca()
112 maxvalue= eigenvalue[j]; in ff_pca()
116 eigenvalue[k]= eigenvalue[i]; in ff_pca()
117 eigenvalue[i]= maxvalue; in ff_pca()
136 if(pass >=3 && fabs((eigenvalue[j]+z[j])/covar) > (1LL<<32) && fabs((eigenvalue[i]+z[i])/covar) > (1LL<<32)){ in ff_pca()
141 h= (eigenvalue[ in ff_pca()
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| H A D | pca.h | 33 int ff_pca(struct PCA *pca, double *eigenvector, double *eigenvalue);
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| /third_party/ffmpeg/libavutil/tests/ |
| H A D | pca.c | 34 double eigenvalue[LEN]; in main() local
64 ff_pca(pca, eigenvector, eigenvalue); in main()
87 v[j] /= eigenvalue[i]; in main()
98 printf(" %9.1f %f\n", eigenvalue[i], eigenvalue[i]/eigenvalue[0]); in main()
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| /third_party/skia/third_party/externals/angle2/src/image_util/ |
| H A D | loadimage_etc.cpp | 1048 float eigenvalue = 0.0f; in selectEndPointPCA() local
1061 eigenvalue = sqrt(r * r + g * g + b * b); in selectEndPointPCA()
1062 if (eigenvalue > 0) in selectEndPointPCA()
1064 float invNorm = 1.0f / eigenvalue; in selectEndPointPCA()
1075 if (eigenvalue < kDefaultLuminanceThreshold) // too small, default to luminance in selectEndPointPCA()
1084 // From the eigenvalue and eigenvector, choose the axis to project in selectEndPointPCA()
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