利用opencv将bgr转成yuv420

最须要留心的是，目标图像是单通道的，高度是原始图像的1.5倍。spa IplImage* imgColor = cvLoadImage("./backImg/0.jpg", 1);im int width = imgColor->width; int height = imgColor->height; IplImage* imgYUV = cvCreateImage(cvSize(width,

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