PLearn::RGBImageDB Class Reference

#include <RGBImage.h>

Collaboration diagram for PLearn::RGBImageDB:

[legend]List of all members.

Public Member Functions
	RGBImageDB (char *dbfilename, int the_subsample_factor=1, int remove_border=0, int the_max_n_images_in_memory=10)
RGBImage	getImage (int imageid)
Mat	computeHistogramRepresentation (int r_bins=16, int g_bins=16, int b_bins=16, bool do_normalize=false)
	Returns for each image a vector of size r_bins*g_bins*b_bins+1 which contains the number of image pixels whose colors fell in the corresponding RGB range, and last element is the class number.
	~RGBImageDB ()
Public Attributes
Mat	imageIdAndClass
	These are two column matrices (first column: imageid, second column: classnum).
Protected Member Functions
int	append (char *filename)
void	load (char *dbfile)
	RGBImageDB (int the_subsample_factor=1, int remove_border=0, int the_max_n_images_in_memory=10)
Protected Attributes
Array< char * >	filenames
Array< RGBImage * >	images
int	subsample_factor
int	remove_border
int	max_n_images_in_memory
int	n_images_in_memory

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Constructor & Destructor Documentation

PLearn::RGBImageDB::RGBImageDB (  int  the_subsample_factor = 1, int  remove_border = 0, int  the_max_n_images_in_memory = 10 )  [protected]

Definition at line 286 of file RGBImage.cc.

PLearn::RGBImageDB::RGBImageDB (  char *  dbfilename, int  the_subsample_factor = 1, int  remove_border = 0, int  the_max_n_images_in_memory = 10 )

Definition at line 292 of file RGBImage.cc. References PLearn::load().

PLearn::RGBImageDB::~RGBImageDB (   )

Definition at line 372 of file RGBImage.cc. References filenames, images, and PLearn::TVec< char * >::size().

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Member Function Documentation

int PLearn::RGBImageDB::append (  char *  filename  )  [protected]

Definition at line 323 of file RGBImage.cc. References PLearn::TVec< RGBImage * >::append(), PLearn::TVec< char * >::append(), filenames, images, and PLearn::TVec< char * >::size(). Referenced by load().

Mat PLearn::RGBImageDB::computeHistogramRepresentation (  int  r_bins = 16, int  g_bins = 16, int  b_bins = 16, bool  do_normalize = false )

Returns for each image a vector of size r_bins*g_bins*b_bins+1 which contains the number of image pixels whose colors fell in the corresponding RGB range, and last element is the class number. Definition at line 356 of file RGBImage.cc. References PLearn::RGBImage::computeHistogram(), getImage(), imageIdAndClass, PLearn::TMat< T >::lastColumn(), PLearn::TMat< T >::length(), and PLearn::TMat< T >::subMatColumns().

RGBImage PLearn::RGBImageDB::getImage (  int  imageid  )

Definition at line 331 of file RGBImage.cc. References filenames, images, PLearn::RGBImage::loadJPEG(), max_n_images_in_memory, n_images_in_memory, remove_border, PLearn::RGBImage::removeBorders(), PLearn::TVec< RGBImage * >::size(), and subsample_factor. Referenced by computeHistogramRepresentation(), PLearn::RGBImagesVMatrix::reset(), PLearn::RGBImagesVMatrix::RGBImagesVMatrix(), PLearn::RGBImagesVMatrix::sample(), and PLearn::RGBImagesVMatrix::seek().

void PLearn::RGBImageDB::load (  char *  dbfile  )  [protected]

Definition at line 300 of file RGBImage.cc. References append(), imageIdAndClass, PLERROR, and PLearn::TMat< T >::resize().

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Member Data Documentation

Array<char*> PLearn::RGBImageDB::filenames [protected]

Definition at line 179 of file RGBImage.h. Referenced by append(), getImage(), and ~RGBImageDB().

Mat PLearn::RGBImageDB::imageIdAndClass

These are two column matrices (first column: imageid, second column: classnum). Definition at line 194 of file RGBImage.h. Referenced by computeHistogramRepresentation(), load(), PLearn::RGBImagesVMatrix::nObjects(), PLearn::RGBImagesVMatrix::reset(), PLearn::RGBImagesVMatrix::RGBImagesVMatrix(), PLearn::RGBImagesVMatrix::sample(), and PLearn::RGBImagesVMatrix::seek().

Array<RGBImage*> PLearn::RGBImageDB::images [protected]

Definition at line 180 of file RGBImage.h. Referenced by append(), getImage(), and ~RGBImageDB().

int PLearn::RGBImageDB::max_n_images_in_memory [protected]

Definition at line 183 of file RGBImage.h. Referenced by getImage().

int PLearn::RGBImageDB::n_images_in_memory [protected]

Definition at line 184 of file RGBImage.h. Referenced by getImage().

int PLearn::RGBImageDB::remove_border [protected]

Definition at line 182 of file RGBImage.h. Referenced by getImage().

int PLearn::RGBImageDB::subsample_factor [protected]

Definition at line 181 of file RGBImage.h. Referenced by getImage().

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The documentation for this class was generated from the following files:

• RGBImage.h
• RGBImage.cc

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