基于opencv的简单亮度校正功能实现

来源：互联网发布：东东手游助手 mac 编辑：程序博客网时间：2024/05/16 09:21

今天找到了个简单亮度校正功能的方法感觉效果还可以,使用于简单背景

代码如下

int _tmain(int argc, _TCHAR* argv[]){IplImage* src;// 第一条命令行参数确定了图像的文件名。char* filename = (char*)"C:\\Users\\chenchao\\Desktop\\结晶\\25.bmp";if( (src = cvLoadImage( filename, 0)) == 0 )return -1;cvNamedWindow( "src", 1 );   cvShowImage( "src", src );IplImage* mean=cvCreateImage(cvGetSize(src), 8, 1 );IplImage* dst=cvCreateImage(cvGetSize(src), 8, 1 );cvSmooth( src, mean, CV_MEDIAN , 101, 101, 0, 0 );cvNamedWindow( "mean", 1 );      cvShowImage( "mean", mean );int i,j;int k;double val,val_mean,val_dst;float factor=0.7;int step_src=src->widthStep/sizeof(uchar);int step_mean=mean->widthStep/sizeof(uchar);for(j=0;j<src->height;j++){for(i=0;i<src->width;i++){k=j*step_src+i; val=((uchar*)(src->imageData))[k];  //获取源图像像素点数据val_mean=((uchar*)(mean->imageData))[k];//获取平滑处理后的图像像素点val_dst=(int)( (127-val_mean)*factor + val ); //计算目标像素值//防止数据越界if(val_dst<0)val_dst=0;//转换成整数复制((uchar*)(dst->imageData))[k]=(int)val_dst; }}cvNamedWindow( "dst", 1 );   cvShowImage( "dst", dst );cvWaitKey(0);cvSaveImage("C:\\Users\\chenchao\\Desktop\\1.bmp",dst);cvReleaseImage(&src); cvReleaseImage(&mean);cvReleaseImage(&dst);cvDestroyWindow("src");cvDestroyWindow("mean");cvDestroyWindow("dst");return 0;}