libavutil/pca.c File Reference

principal component analysis (PCA) More...

#include "common.h"
#include "pca.h"

Go to the source code of this file.

Data Structures

struct  PCA


#define ROTATE(a, i, j, k, l)


PCAff_pca_init (int n)
void ff_pca_free (PCA *pca)
void ff_pca_add (PCA *pca, double *v)
int ff_pca (PCA *pca, double *eigenvector, double *eigenvalue)

Detailed Description

principal component analysis (PCA)

Definition in file pca.c.

Define Documentation

#define ROTATE ( a,


    double g=a[j + i*n];\
    double h=a[l + k*n];\
    a[j + i*n]=g-s*(h+g*tau);\
    a[l + k*n]=h+s*(g-h*tau); }

Referenced by ff_pca().

Function Documentation

int ff_pca ( PCA pca,
double *  eigenvector,
double *  eigenvalue 

Definition at line 69 of file pca.c.

void ff_pca_add ( PCA pca,
double *  v 

Definition at line 57 of file pca.c.

void ff_pca_free ( PCA pca  ) 

Definition at line 51 of file pca.c.

PCA* ff_pca_init ( int  n  )  [read]

Definition at line 37 of file pca.c.

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