//载入图像强制转化为Gray-opencv实例
//载入图像，强制转化为Gray if( argc == 3 && (pImg = cvLoadImage( argv[1], 0)) != 0 ) { IplImage* pImg2 = cvCreateImage(cvGetSize(pImg), pImg->depth, pImg->nChannels); cvCopy(pImg, pImg2, NULL); cvSaveImage(argv[2], pImg2);//把图像写入文件cvNamedWindow( "Image", 1 );//创建窗口cvShowImage( "Image", pImg );//显示图像cvWaitKey(0); //等待按键cvDestroyWindow( "Image" );//销毁窗口cvReleaseImage( &pImg ); //释放图像cvReleaseImage( &pImg2 ); //释放图像return 0; } return -1; }
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