Decode JPEG to char*
Decode JPEG to char*
请帮忙解决这个小问题:
我尝试通过OPENCV解码传入的jpg数据:
cv::Mat video_frame = cv::imdecode(cv::Mat(buffer), -1);
char* drawingData=??????;
我可以在屏幕上手动绘制"drawingData",如果它是RGB 24位格式。
所以问题是我如何从这个video_frame得到drawingData ?
试试这样
char* data = (char *)image->imageData;
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