| PCACompute Method |
Performs PCA.
The operator performs %PCA of the supplied dataset. It is safe to reuse
the same PCA structure for multiple datasets. That is, if the structure
has been previously used with another dataset, the existing internal
data is reclaimed and the new @ref eigenvalues, @ref eigenvectors and @ref
mean are allocated and computed.
The computed @ref eigenvalues are sorted from the largest to the smallest and
the corresponding @ref eigenvectors are stored as eigenvectors rows.
Namespace:
OpenCvSharp
Assembly:
OpenCvSharp (in OpenCvSharp.dll) Version: 1.0.0
Syntax public PCA Compute(
InputArray data,
InputArray mean,
PCAFlags flags,
int maxComponents = 0
)
Public Function Compute (
data As InputArray,
mean As InputArray,
flags As PCAFlags,
Optional maxComponents As Integer = 0
) As PCA
public:
PCA^ Compute(
InputArray^ data,
InputArray^ mean,
PCAFlags flags,
int maxComponents = 0
)
member Compute :
data : InputArray *
mean : InputArray *
flags : PCAFlags *
?maxComponents : int
(* Defaults:
let _maxComponents = defaultArg maxComponents 0
*)
-> PCA
Parameters
- data
- Type: OpenCvSharpInputArray
input samples stored as the matrix rows or as the matrix columns. - mean
- Type: OpenCvSharpInputArray
optional mean value; if the matrix is empty (noArray()), the mean is computed from the data. - flags
- Type: OpenCvSharpPCAFlags
operation flags; currently the parameter is only used to specify the data layout. (Flags) - maxComponents (Optional)
- Type: SystemInt32
maximum number of components that PCA should retain;
by default, all the components are retained.
Return Value
Type:
PCA[Missing <returns> documentation for "M:OpenCvSharp.PCA.Compute(OpenCvSharp.InputArray,OpenCvSharp.InputArray,OpenCvSharp.PCA.Flags,System.Int32)"]
See Also