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Overloaded PCA constructor and ( ) operator to implement Feature#2287 - PCA that retains a specified amount of variance from the data. A sample was added to samples/cpp to demonstrate the new functionality. Docs and Tests were also updated

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Kevin
2012-08-22 23:21:49 -04:00
committed by Vadim Pisarevsky
parent a74a2302aa
commit 93155c6ae0
4 changed files with 335 additions and 4 deletions
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5
modules/core/include/opencv2/core/core.hpp
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@@ -2359,8 +2359,10 @@ public:
PCA();
//! the constructor that performs PCA
PCA(InputArray data, InputArray mean, int flags, int maxComponents=0);
PCA(InputArray data, InputArray mean, int flags, double retainedVariance);
//! operator that performs PCA. The previously stored data, if any, is released
PCA& operator()(InputArray data, InputArray mean, int flags, int maxComponents=0);
PCA& operator()(InputArray data, InputArray mean, int flags, double retainedVariance);
//! projects vector from the original space to the principal components subspace
Mat project(InputArray vec) const;
//! projects vector from the original space to the principal components subspace
@@ -2378,6 +2380,9 @@ public:
CV_EXPORTS_W void PCACompute(InputArray data, CV_OUT InputOutputArray mean,
OutputArray eigenvectors, int maxComponents=0);
CV_EXPORTS_W void PCACompute(InputArray data, CV_OUT InputOutputArray mean,
OutputArray eigenvectors, double retainedVariance);
CV_EXPORTS_W void PCAProject(InputArray data, InputArray mean,
InputArray eigenvectors, OutputArray result);