CLAHE源码解析：

ContrastLimitAHE .h：

#ifndef _CONTRAST_LIMIT_AHE_H_

#define _CONTRAST_LIMIT_AHE_H_

#include "stdafx.h"

#include

using namespace std;

class ContrastLimitAHE

{

public:

ContrastLimitAHE();

~ContrastLimitAHE();

int m_nGridX;                /* CLAHE 宽网格的个数 */

int m_nGridY;                /* CLAHE 高网格的个数 */

unsigned char m_aLUT[256];   /* CLAHE lookup table used for scaling of input image 输入图像缩放的查找表*/

int Initial(int nMaxPixel, int nMinPixel, int uiNrBins, int nX, int nY, int nWidth, int nHeight,float fCliplimit);

int m_nWidth;                /* CLAHE 宽 */

int m_nHeight;               /* CLAHE 高 */

int m_nCliplimit;

int m_nHistBins;

int m_nGridSize_X;

int m_nGridSize_Y;

int *m_pMapArray;

int m_nGridSize;            /* Actual size of contextual regions实际周边区域大小 */

int ProcessCLAHE(unsigned char* pImage);

void MakeHistogram(unsigned char* pImage,int* pulHistogram);

void ClipHistogram(int* pulHistogram);

void MapHistogram(int* pulHistogram);

void Interpolate (unsigned char * pImage);

int m_nMaxPixel;

int m_nMinPixel;

void ShiftInterpolate(unsigned char* pImage, int nSizeX, int nSizeY, int* pulMapLU, int* pulMapRU, int *pulMapLB, int *pulMapRB);

int LineInterpolate(unsigned char* pImage, int nSizeX, int nSizeY, int* pLU, int* pRU, int* pLB, int* pRB);

};

#endif