Linux系统做音视频开发,很多时候要用到opencv,就需要把图片Buffer数据转换成Mat对象来使用
Buffer 转 Mat
Mat Buffer2Mat(unsigned char* buffer, int len) { vector<unsigned char> img_data(buffer, buffer+len); Mat img = imdecode(img_data, IMREAD_ANYCOLOR); return img; }
Mat 转 Buffer
Mat src = imread("image.bmp"); std::vector<unsigned char> src_data; cv::imencode(".jpg", src, src_data); unsigned char* buffer = src_data.data(); int len = src_data.size();
标签:src,Mat,img,Buffer,buffer,互转,data From: https://www.cnblogs.com/shiyixirui/p/18123843