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// 载入图像 img=cvLoadImage("lena.jpg",-1);if(!img) { printf("Could not load image file: %s\n",argv[1]); exit(0);}// 获取图像信息 height = img->height; width = img->width; step = img->widthStep; channels = img->nChannels;data = (uchar *)img->imageData;// 反转图像for(i=0;i<height;i++) for(j=0;j<width;j++) for(k=0;k<channels;k++) data[i*step+j*channels+k]=255-data[i*step+j*channels+k]; |
原文：http://www.cnblogs.com/sylar120/p/3561203.html