opencv 将yuv图像转为png并保存

包含头文件

#include <opencv2/opencv.hpp>
#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>

转换并保存

string filename="out.png";
cv::Mat rgb_img;
cv::cvtColor(yuv_img, rgb_img, CV_YUV420sp2RGB);
cv::imwrite(filename, rgb_img);
cv::imshow("rgb_img:",rgb_img);