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csuCommonSubspace.h

Go to the documentation of this file.

/*
 *  csuCommonSubspace.h
 *
 *  Created by Marcio L. Teixeira on Tue Jun 19 2002.
 *  Copyright (c) 2002 __MyCompanyName__. All rights reserved.
 *
 */

#ifndef CSU_COMMON_SUBSPACE_INCLUDED
#define CSU_COMMON_SUBSPACE_INCLUDED

#include "csuCommon.h"
namespace csu{
typedef struct
{
  int numPixels;
  int basisDim;

  Matrix values;
  Matrix basis;
  Matrix mean;

  /* Try to use nomenclature compatible with [1] */

  int constM;
  int constN;
  int constNt;
} Subspace;


  Matrix projectImages(Matrix images, Matrix basis, Matrix mean);
  
void readTrainingFile(const char* trainingFile, int *numPixels, int *basisDim, Matrix *mean, Matrix *values,
                      Matrix *basis, int *ldaSpace, int quiet);

void validateBasisIsOrthonormal(Matrix basis, int printlevel);

Matrix centerThenProjectImages(Subspace *s, Matrix images);

void readSubspace (Subspace *s, const char *trainingFile, int quiet);
Matrix readAndProjectImages(Subspace *s, char *imageNamesFile, char *imageDirectory, int *numImages, ImageList **srt);

/* The following are prototypes for functions found in the csuSubspace files. */

/* eigensolvers found in csuSubspaceCVEigen */
int  cvJacobiEigens_32f ( float* A, float* V, float* E, int n, float eps );
int  cvJacobiEigens_64d( double* A, double* V, double* E, int n, double eps );

/* basis manipulation */
void basis_normalize(Matrix eigenvectors);
void mean_subtract_images(Matrix images, Matrix mean);
Matrix get_mean_image(Matrix images);

/* subspace training functions */
void eigentrain(Matrix *mean, Matrix *eigen_vals, Matrix *eigen_base, Matrix images);
void fisherTrain(Matrix imspca, ImageList *srt, Matrix *fisherBasis, Matrix *fisherValues, int writeTextInterm);
}
#endif /* CSU_COMMON_SUBSPACE_INCLUDED */

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