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Cv2PCAComputeVar Method (InputArray, InputOutputArray, OutputArray, Double)

PCA of the supplied dataset.

Namespace:  OpenCvSharp
Assembly:  OpenCvSharp (in OpenCvSharp.dll) Version: 1.0.0
Syntax
public static void PCAComputeVar(
	InputArray data,
	InputOutputArray mean,
	OutputArray eigenvectors,
	double retainedVariance
)

Parameters

data
Type: OpenCvSharpInputArray
input samples stored as the matrix rows or as the matrix columns.
mean
Type: OpenCvSharpInputOutputArray
optional mean value; if the matrix is empty (noArray()), the mean is computed from the data.
eigenvectors
Type: OpenCvSharpOutputArray
eigenvectors of the covariation matrix
retainedVariance
Type: SystemDouble
Percentage of variance that PCA should retain. Using this parameter will let the PCA decided how many components to retain but it will always keep at least 2.
See Also