基于hsv的亮度调整算法_改变HSV的H和V部分（比如可以增加图像亮度）

程序：

效果：增加图像亮度

代码：#include "cv.h"

#include "cxcore.h"

#include "highgui.h"

#include 

void Max(IplImage* hsv)

{

for(int rows=0;rowsheight;rows++)

{

float *data=(float *)(hsv->imageData+rows*hsv->widthStep);

for(int cols=0;colswidth;cols++)

{

//*(data+cols*hsv->nChannels+1)=255;  //改变S

*(data+cols*hsv->nChannels+2)+=30;   //改变V

}

}

}

int IplImageChange(int argc,char** argv)

{

IplImage* BGRSrc=cvLoadImage("e:\\picture\\4.jpg");

cvNamedWindow("BGRSrc");

cvShowImage("BGRSrc",BGRSrc);

IplImage* BGR32=cvCreateImage(cvGetSize(BGRSrc),32,BGRSrc->nChannels);

cvZero(BGR32);

cvConvertScale(BGRSrc,BGR32);//把源图像转换成32位浮点型

IplImage* HSV=cvCreateImage(cvGetSize(BGRSrc),32,BGRSrc->nChannels);

cvZero(HSV);

cvCvtColor(BGR32,HSV,CV_BGR2HSV);//BGR转换为HSV

cvNamedWindow("HSV");

cvShowImage("HSV",HSV);

Max(HSV);                         //改变HSV

cvNamedWindow("HSVMax");

cvShowImage("HSVMax",HSV);

cvZero(BGR32);

cvCvtColor(HSV,BGR32,CV_HSV2BGR); //HSV转换为BGR32位

cvNamedWindow("BGR32Dst");

cvShowImage("BGR32Dst",BGR32);

IplImage* BGRDst=cvCreateImage(cvGetSize(BGRSrc),8,BGRSrc->nChannels);

cvZero(BGRDst);

cvConvertScale(BGR32,BGRDst);   //BGR32位转换为BGR8位

cvNamedWindow("BGRDst");

cvShowImage("BGRDst",BGRDst);

cvWaitKey(0);

cvDestroyWindow("BGRSrc");

cvDestroyWindow("HSV");

cvDestroyWindow("HSVMax");

cvDestroyWindow("BGR32Dst");

cvDestroyWindow("BGRDst");

cvReleaseImage(&BGRSrc);

cvReleaseImage(&BGR32);

cvReleaseImage(&HSV);

cvReleaseImage(&BGRDst);

return 0;

}

原文：http://flyclc.blog.51cto.com/1385758/1539972