Matrix Class Reference

#include <Matrix.h>

Inheritance diagram for Matrix:

List of all members.

Public Member Functions
	Matrix (const int nXSize, const int nYSize)
	Matrix (const Matrix &matrix)
Matrix &	operator= (const Matrix &matrix)
Matrix &	copyData (const Matrix &matrix)
void *	getImage ()
void *	getImageCopy (uint32_t *x, uint32_t *y, uint32_t *size, void *p)
bool	isZero ()
QPoint *	getNonZero ()
void	setValue (float value)
void	setZero ()
void	setOne ()
void	multiplyScalar (float item)
void	addScalar (float item)
void	addMatrix (Matrix *input)
bool	equals (Matrix *input)
bool	equals (Matrix *input, int tol)
void	subtractMatrix (Matrix *input)
void	dotSquare ()
void	punch_out (int window)
void	circularMask ()
void	clamp (float the_value)
void	applyGatingControl (Matrix *theGatingControl)
void	applyIOR (Matrix *theIORMap)
void	applyThreshold (float the_value)
void	applyThresholdBinarize (float the_value)
void	applyThresholdAndMark (float value, Matrix *gc)
void	setPixels (unsigned char *data)
void	setPixels (int *data)
void	downsample (Matrix *input)
void	downsample_skip (Matrix *input)
void	upsample (Matrix *input)
void	upsample_skip (Matrix *input, float fill=0)
void	resample (Matrix *input, bool skip=false, float fill=0)
float	average ()
void	setZeroMean ()
void	setOneSum ()
void	normalize (float scale)
void	printContent ()
void	printContentMap ()
void	save (QDataStream *outStream)
void	read (QDataStream *inStream)
void	saveActivations (char *filename)
QImage *	toSTMQImage (int max=255)
void	scaleValues (float minScaleValue, float maxScaleValue)
void	dotProduct (Matrix *otherMatrix)
void	rectangleCopy (uint32_t r_w, uint32_t r_h, uint32_t x1, uint32_t y1, Matrix *otherMatrix, uint32_t o_x1, uint32_t o_y1)
void	shift (int dx, int dy, int fillOption=0)
void	rectangleFill (uint32_t x, uint32_t y, uint32_t w, uint32_t h, float theValue)
float	sumAll ()
float	sumAllPositive ()
float	getMaxValue ()
float	getMinValue ()
float	sumAllAbsolute ()
void	addNoise ()
QPoint *	getMaxCoords ()
QPoint *	getMaxCoordsSpiral ()
int	changeBrightnessOp (int value, int brightness)
int	changeContrastOp (int value, int contrast)
int	changeGammaOp (int value, int gamma)
int	changeUsingTable (int value, const int table[])
QImage	changeImage (ChangeOp changeOp, const QImage &image, int value)
QImage	changeBrightness (const QImage &image, int brightness)
QImage	changeContrast (const QImage &image, int contrast)
QImage	changeGamma (const QImage &image, int gamma)
Protected Member Functions
void	serialize (char *buf)
	Matrix (char *buf)
	Matrix (QString fileName, int fileType)
int	getSendSize ()
void	createKernel (float *kernel)
	Matrix ()
Protected Attributes
bool	created

---

Detailed Description

Matrix - 2D array of floats. Designed for speed:

• we want one contiguous chunk of memory, to use memset, memcopy
• we don't want to do math to access individual elements

The matrix is a 1D array of floats + 1D array of pointers to the beginning of the rows

---

Constructor & Destructor Documentation

Matrix::Matrix

(

char *

buf

)

[protected]

Constructor from serialized Matrix. Used with void Matrix::serialize(char* buf)

Matrix::Matrix	(	QString	fileName,
		int	fileType
	)		[protected]

Constructor from file. Used by FileFilter.

Matrix::Matrix

(

)

[protected]

Matrix::Matrix	(	const int	nXSize,
		const int	nYSize
	)

Matrix::Matrix

(

const Matrix &

matrix

)

---

Member Function Documentation

void Matrix::addMatrix

(

Matrix *

input

)

void Matrix::addNoise

(

)

void Matrix::addScalar

(

float

item

)

void Matrix::applyGatingControl

(

Matrix *

theGatingControl

)

void Matrix::applyIOR

(

Matrix *

theIORMap

)

void Matrix::applyThreshold

(

float

the_value

)

Threshold the matrix - all entries below the given value are set to zero

void Matrix::applyThresholdAndMark	(	float	value,
		Matrix *	gc
	)

Threshold the matrix and mark winners and losers in gc.

void Matrix::applyThresholdBinarize

(

float

the_value

)

Threshold the matrix - all entries below the given value are set to zero, above set to 1

float Matrix::average

(

)

QImage Matrix::changeBrightness	(	const QImage &	image,
		int	brightness
	)

int Matrix::changeBrightnessOp	(	int	value,
		int	brightness
	)		[inline]

QImage Matrix::changeContrast	(	const QImage &	image,
		int	contrast
	)

int Matrix::changeContrastOp	(	int	value,
		int	contrast
	)		[inline]

QImage Matrix::changeGamma	(	const QImage &	image,
		int	gamma
	)

int Matrix::changeGammaOp	(	int	value,
		int	gamma
	)		[inline]

QImage Matrix::changeImage	(	ChangeOp	changeOp,
		const QImage &	image,
		int	value
	)

int Matrix::changeUsingTable	(	int	value,
		const int	table[]
	)		[inline]

void Matrix::circularMask

(

)

void Matrix::clamp

(

float

the_value

)

Matrix & Matrix::copyData

(

const Matrix &

matrix

)

void Matrix::createKernel

(

float *

kernel

)

[protected]

Creates a packed array representation of the Matrix. Used by Filter::getKernel.

void Matrix::dotProduct

(

Matrix *

otherMatrix

)

A "flavoured" version of the product. Each element is multiplied with the corresponding one from the other matrix. The otherMatrix is not modified.

void Matrix::dotSquare

(

)

Square element by element (used by NonFourier Neurons)

void Matrix::downsample

(

Matrix *

input

)

Downsample with averaging

void Matrix::downsample_skip

(

Matrix *

input

)

Downsample skipping pixels

bool Matrix::equals

(

Matrix *

input

)

bool Matrix::equals	(	Matrix *	input,
		int	tol
	)

void * Matrix::getImage

(

)

Get the data

void * Matrix::getImageCopy	(	uint32_t *	x,
		uint32_t *	y,
		uint32_t *	size,
		void *	p
	)

Get a copy of the data in the buffer provided, or allocate a buffer

Parameters:

x	The width of the image
y	The height of the image
size	The seize of the buffer
p	The buffer (function will allocate if NULL)

QPoint * Matrix::getMaxCoords

(

)

Coordinates of maximum element (first)

QPoint * Matrix::getMaxCoordsSpiral

(

)

Coordinates of maximum element starting in the center and seacrhing in a spiral (max closest to center)

float Matrix::getMaxValue

(

)

[inline]

Max element in matrix

float Matrix::getMinValue

(

)

Min element in matrix

QPoint * Matrix::getNonZero

(

)

Find the coordinates of the first non-zero element in the matrix. Used for STM WTA. Will need to add another function that somehow localizes all the non-zero elements.

int Matrix::getSendSize

(

)

[protected]

Size of buffer needed for network communications. For serialize().

Reimplemented in OutputImage.

bool Matrix::isZero

(

)

void Matrix::multiplyScalar

(

float

item

)

void Matrix::normalize

(

float

scale

)

Matrix & Matrix::operator=

(

const Matrix &

matrix

)

void Matrix::printContent

(

)

void Matrix::printContentMap

(

)

void Matrix::punch_out

(

int

window

)

void Matrix::read

(

QDataStream *

inStream

)

void Matrix::rectangleCopy	(	uint32_t	r_w,
		uint32_t	r_h,
		uint32_t	x1,
		uint32_t	y1,
		Matrix *	otherMatrix,
		uint32_t	o_x1,
		uint32_t	o_y1
	)

copies the data from other matrix from a ractangle of size (r_w,r_h) locate at (o_x1,o_y1) into a similar rectangle in the current matrix at (x1,y1).

void Matrix::rectangleFill	(	uint32_t	x,
		uint32_t	y,
		uint32_t	w,
		uint32_t	h,
		float	theValue
	)

fills a rectangle with a specified value

void Matrix::resample	(	Matrix *	input,
		bool	skip = false,
		float	fill = 0
	)

void Matrix::save

(

QDataStream *

outStream

)

void Matrix::saveActivations

(

char *

filename

)

void Matrix::scaleValues	(	float	minScaleValue,
		float	maxScaleValue
	)

Modifies the values so that they are within this new range.

void Matrix::serialize

(

char *

buf

)

[protected]

Serialize the Matrix into the provided buffer. Called from OutputImage, used with Matrix::Matrix( char* buf)

Reimplemented in OutputImage.

void Matrix::setOne

(

)

[inline]

void Matrix::setOneSum

(

)

void Matrix::setPixels

(

unsigned char *

data

)

void Matrix::setPixels

(

int *

data

)

void Matrix::setValue

(

float

value

)

[inline]

void Matrix::setZero

(

)

[inline]

void Matrix::setZeroMean

(

)

void Matrix::shift	(	int	dx,
		int	dy,
		int	fillOption = 0
	)

Shifts the content of the matrix by the dx,dy. The rest is filled with 0z for now. if more fill controll needed, further develop the fillOption parameter

fillOption - currently ignored in the current implementation - the empty space gets padded with 0-zz

void Matrix::subtractMatrix

(

Matrix *

input

)

float Matrix::sumAll

(

)

[inline]

Sum of all matrix elements

float Matrix::sumAllAbsolute

(

)

float Matrix::sumAllPositive

(

)

[inline]

Sum of all positive matrix elements

QImage * Matrix::toSTMQImage

(

int

max = 255

)

Creates an QImage out of the matrix.

void Matrix::upsample

(

Matrix *

input

)

Upsample duplicating pixels

void Matrix::upsample_skip	(	Matrix *	input,
		float	fill = 0
	)

Upsample filling with zero

---

Member Data Documentation

bool Matrix::created [protected]

---

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

• C:/Users/albertlr/projects/TarzaNN/TarzaNN/Matrix.h
• C:/Users/albertlr/projects/TarzaNN/TarzaNN/Matrix.cpp