clahe.cpp File Reference

Definitions for Contrast Limited Adaptive Histogram Equalization (CLAHE). More...

#include <cv.h>
#include "clahe.h"
#include <stdio.h>
#include <stdlib.h>

Include dependency graph for clahe.cpp:

Go to the source code of this file.

Defines
#define	BYTE_IMAGE
#define	uiNR_OF_GREY   (256)
Typedefs
typedef unsigned char	kz_pixel_t
Functions
static int	CLAHE (kz_pixel_t *pImage, unsigned int uiXRes, unsigned int uiYRes, kz_pixel_t Min, kz_pixel_t Max, unsigned int uiNrX, unsigned int uiNrY, unsigned int uiNrBins, float fCliplimit)
static void	ClipHistogram (unsigned long *, unsigned int, unsigned long)
void	cvAdaptEqualize (IplImage *src, IplImage *dst, unsigned int xdivs, unsigned int ydivs, unsigned int bins, int range)
void	cvCLAdaptEqualize (IplImage *src, IplImage *dst, unsigned int xdivs, unsigned int ydivs, unsigned int bins, float limit, int range)
static void	Interpolate (kz_pixel_t *, int, unsigned long *, unsigned long *, unsigned long *, unsigned long *, unsigned int, unsigned int, kz_pixel_t *)
static void	MakeHistogram (kz_pixel_t *, unsigned int, unsigned int, unsigned int, unsigned long *, unsigned int, kz_pixel_t *)
static void	MakeLut (kz_pixel_t *, kz_pixel_t, kz_pixel_t, unsigned int)
static void	MapHistogram (unsigned long *, kz_pixel_t, kz_pixel_t, unsigned int, unsigned long)
Variables
static const unsigned int	uiMAX_REG_X = 16
static const unsigned int	uiMAX_REG_Y = 16

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Detailed Description

Definitions for Contrast Limited Adaptive Histogram Equalization (CLAHE).

Definition in file clahe.cpp.

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Define Documentation

#define BYTE_IMAGE

Definition at line 31 of file clahe.cpp.

#define uiNR_OF_GREY   (256)

Definition at line 35 of file clahe.cpp.

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Typedef Documentation

typedef unsigned char kz_pixel_t

Definition at line 34 of file clahe.cpp.

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Function Documentation

static int CLAHE	(	kz_pixel_t *	pImage,
		unsigned int	uiXRes,
		unsigned int	uiYRes,
		kz_pixel_t	Min,
		kz_pixel_t	Max,
		unsigned int	uiNrX,
		unsigned int	uiNrY,
		unsigned int	uiNrBins,
		float	fCliplimit
	)			[static]

Definition at line 254 of file clahe.cpp.

void ClipHistogram	(	unsigned long *	pulHistogram,
		unsigned int	uiNrGreylevels,
		unsigned long	ulClipLimit
	)			[static]

Definition at line 354 of file clahe.cpp.

void cvAdaptEqualize	(	IplImage *	src,
		IplImage *	dst,
		unsigned int	xdivs,
		unsigned int	ydivs,
		unsigned int	bins,
		int	range
	)

Definition at line 72 of file clahe.cpp.

void cvCLAdaptEqualize	(	IplImage *	src,
		IplImage *	dst,
		unsigned int	xdivs,
		unsigned int	ydivs,
		unsigned int	bins,
		float	limit,
		int	range
	)

Definition at line 97 of file clahe.cpp.

void Interpolate	(	kz_pixel_t *	pImage,
		int	uiXRes,
		unsigned long *	pulMapLU,
		unsigned long *	pulMapRU,
		unsigned long *	pulMapLB,
		unsigned long *	pulMapRB,
		unsigned int	uiXSize,
		unsigned int	uiYSize,
		kz_pixel_t *	pLUT
	)			[static]

Definition at line 493 of file clahe.cpp.

void MakeHistogram	(	kz_pixel_t *	pImage,
		unsigned int	uiXRes,
		unsigned int	uiSizeX,
		unsigned int	uiSizeY,
		unsigned long *	pulHistogram,
		unsigned int	uiNrGreylevels,
		kz_pixel_t *	pLookupTable
	)			[static]

Definition at line 443 of file clahe.cpp.

void MakeLut	(	kz_pixel_t *	pLUT,
		kz_pixel_t	Min,
		kz_pixel_t	Max,
		unsigned int	uiNrBins
	)			[static]

Definition at line 482 of file clahe.cpp.

void MapHistogram	(	unsigned long *	pulHistogram,
		kz_pixel_t	Min,
		kz_pixel_t	Max,
		unsigned int	uiNrGreylevels,
		unsigned long	ulNrOfPixels
	)			[static]

Definition at line 466 of file clahe.cpp.

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Variable Documentation

const unsigned int uiMAX_REG_X = 16 [static]

Definition at line 250 of file clahe.cpp.

const unsigned int uiMAX_REG_Y = 16 [static]

Definition at line 251 of file clahe.cpp.