Static Public Member Functions
static IplImage *	resizeToArea (const IplImage *img, int area, double &ratio)
static CvPoint	center (const Face &)
static int	distance (CvPoint, CvPoint)
static int	distance (const Face &, const Face &)
static CvMat *	addScalar (CvMat *src, CvScalar value)
static CvMat *	combine (CvMat src, CvMat vector)
static void	divVec (CvMat *src, double value)
static CvMat *	getColoumn (CvMat *src, int col)
static CvMat *	mean (CvMat *src)
static CvMat *	multScalar (CvMat *src, double value)
static void	printMatrix (CvMat *src)
static CvMat *	reshape (CvMat *src)
static CvMat *	reverseOrder (CvMat *src)
static void	showImage (CvArr *src, const std::string &title="Image")
static void	showImage (const IplImage *img, const std::vector< Face > &faces, double scale=1, const std::string &title="Image")
static void	sqrVec (CvMat *src)
static IplImage *	stringToImage (const std::string &data, int depth, int channels)
static CvMat *	stringToMatrix (const std::string &data, int type)
static CvMat *	subtract (CvMat src1, CvMat src2)
static double	sumVecToDouble (CvMat *src)
static CvMat *	transpose (CvMat *src)
static IplImage *	charToIplImage (const char *img, int width, int height, int step, int depth, int channels)
static IplImage *	copyRect (const IplImage *src, const CvRect &rect)
static IplImage *	scaledSection (const IplImage *src, const CvRect &sourceRect, double scaleFactor)
static IplImage *	scaledSection (const IplImage *src, const CvRect &sourceRect, const CvSize &destSize)
static std::string	imageToString (IplImage *src)
static std::string	matrixToString (CvMat *src)

Member Function Documentation

CvMat * libface::LibFaceUtils::addScalar	(	CvMat *	src,
		CvScalar	value
	)		`[static]`

A method for adding another element to the end of a vector.

Parameters:

src	A pointer to a matrix.
value	Value to be appended to the end.

Returns:: Returns a pointer to the new vector.

CvPoint libface::LibFaceUtils::center ( const Face & f ) [static]

Returns a CvPoint that is the center coordinate of a face object.

Parameters:

f	The face object whose center will be returned

Returns:: The center of the face

CvMat * libface::LibFaceUtils::combine	(	CvMat *	src,
		CvMat *	vector
	)		`[static]`

Method for adding an extra column to a matrix. This method makes no checks on validity of the data.

Parameters:

src	A pointer to a matrix to be added to.
vector	A pointer to a vector to be added to the matrix. Needs to have the same number of rows.

Returns:: Returns a pointer to the new matrix with added column.

IplImage * libface::LibFaceUtils::copyRect	(	const IplImage *	src,
		const CvRect &	rect
	)		`[static]`

cvCreateImage(cvSize(src->width, src->height), src->depth, src->nChannels);

int libface::LibFaceUtils::distance	(	const Face &	f1,
		const Face &	f2
	)		`[static]`

Returns the integer-rounded distance between the centers of two faces.

Parameters:

f1	The first Face object
f2	The second Face object

Returns:: The distance between the two Faces

int libface::LibFaceUtils::distance	(	CvPoint	p1,
		CvPoint	p2
	)		`[static]`

Returns the integer-rounded distance between two points.

Parameters:

p1	The first CvPoint
p2	The second CvPoint

Returns:: The distance between the two points

void libface::LibFaceUtils::divVec	(	CvMat *	src,
		double	value
	)		`[static]`

Method for dividing every element by some value. Matrix is modified in process.

Parameters:

src	A pointer to a matrix.
value	A value to be divided by.

CvMat * libface::LibFaceUtils::getColoumn	(	CvMat *	src,
		int	col
	)		`[static]`

Method for accessing a coloumn from a matrix.

Parameters:

src	A pointer to a matrix.
id	of coloumn to be returned.

Returns:: Returns the pointer to the coloumn.

string libface::LibFaceUtils::imageToString ( IplImage * img ) [static]

Method for converting image(greyscale, 1 channel) into a string. The data in coloumns is separated by "\t" and rows are separated by "\n".

Parameters:

img	- A pointer to the IplImage to be converted to string.

Returns:: String is returned containing the data of the image.

string libface::LibFaceUtils::matrixToString ( CvMat * src ) [static]

Method for converting matrix into a string. The data in coloumns is separated by "\t" and rows are separated by "\n".

Parameters:

src	- A pointer to the matrix to be converted to string.

Returns:: String is returned containing the data of the matrix.

CvMat * libface::LibFaceUtils::mean ( CvMat * src ) [static]

Method for calculating mean value for every row.

Parameters:

src	A pointer to a matrix.

Returns:: Returns a pointer to the matrix containing means for every row.

CvMat * libface::LibFaceUtils::multScalar	(	CvMat *	src,
		double	value
	)		`[static]`

Method for multiplying every element by a single value. New matrix is created and returned.

void libface::LibFaceUtils::printMatrix ( CvMat * src ) [static]

Method for printing matrix.

Parameters:

src	A pointer to a matrix.

CvMat * libface::LibFaceUtils::reshape ( CvMat * src ) [static]

Method for reshaping a matrix into a single coloumn vector.

Parameters:

src	A pointer to the matrix to be reshaped.

Returns:: Returns the pointer to the reshaped vector.

IplImage * libface::LibFaceUtils::resizeToArea	(	const IplImage *	img,
		int	area,
		double &	ratio
	)		`[static]`

This takes the input image and returns a new image of a specified pixel count (area), while preserving the aspect ratio.

Parameters:

img	The input image
area	The desired area of the resized image
ratio	The scaling factor, to be passed as reference

Returns:: The resized image

CvMat * libface::LibFaceUtils::reverseOrder ( CvMat * src ) [static]

Method for reversing order of the elements in a matrix. Only columns are reversed, rows are left in tact.

Parameters:

src	A pointer to a matrix to have columns reversed.

Returns:: Returns a pointer to the new matrix.

void libface::LibFaceUtils::sqrVec ( CvMat * src ) [static]

A method for squaring every element in a matrix. The matrix will be modified in the process.

Parameters:

src	A pointer to the matrix where every element will be squared.

IplImage * libface::LibFaceUtils::stringToImage	(	const std::string &	data,
		int	depth,
		int	channels
	)		`[static]`

Method for converting from string to image format. The data in the columns is separated by "\t" rows are separated by "\n".

Parameters:

data	- String that contains the delimited data.
depth	- depth for the image to be.
channels	- Numbers of channels in the image.

Returns:: Returns the pointer to IplImage with the values contained in the string.

CvMat * libface::LibFaceUtils::stringToMatrix	(	const std::string &	data,
		int	type
	)		`[static]`

Method for converting from string to matrix format. The data in the columns is separated by "\t" rows are separated by "\n".

Parameters:

data	- String that contains the delimited data.
type	- type for the matrix to be.

Returns:: Returns the pointer matrix with the values contained in the string.

CvMat * libface::LibFaceUtils::subtract	(	CvMat *	src1,
		CvMat *	src2
	)		`[static]`

A method for subtrating a vector from a matrix. New matrix is created in process.

Parameters:

src1	A pointer to a matrix to be subtracted from.
src2	A pointer to a vector to be subtracted.

Returns:: Returns a pointer to the new matrix.

double libface::LibFaceUtils::sumVecToDouble ( CvMat * src ) [static]

Method for summing all the rows in a vector to a value of type double.

Parameters:

src	A pointer to a vector to be summed.

Returns:: Returns sum of all rows in a vector as a double.

CvMat * libface::LibFaceUtils::transpose ( CvMat * src ) [static]

Method for transposing a matrix.

Parameters:

src	A Pointer to the matrix.

Returns:: Returns a pointer to the transposed matrix.

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

src/LibFaceUtils.h
src/LibFaceUtils.cpp

libface::LibFaceUtils Class Reference

Static Public Member Functions

Member Function Documentation