opencvRGB 图片转化为yuv格式_opencv rgb转yuv

RGB 格式的图片转化为yuv 格式

#include <opencv2/opencv.hpp>
#include<opencv2/imgproc/imgproc.hpp>
#include<iostream>
using namespace std;
using namespace cv;
int main()
{
	Mat Image;
	Mat yuvImg;
	Mat test_yuv;
	Image = imread("D:\\Profile\\Desktop\\1.jpg");      //原图
	resize(Image, test_yuv, Size(656, 976));
	int w = test_yuv.cols;
	int h = test_yuv.rows;
	int buflen = w * h ;
	unsigned char* yuvbuf = new unsigned char[buflen];
	FILE* pfile=fopen("img.yuv", "wb");;
	cvtColor(test_yuv, yuvImg, COLOR_RGB2YUV_IYUV);
	imshow("yuv", yuvImg);
	//waitKey();
	memcpy(yuvbuf, yuvImg.data, buflen * sizeof(unsigned char));
	fwrite(yuvbuf, buflen * sizeof(unsigned char), 1, pfile);
	fclose(pfile);
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

生成的文件 可以用yuvplayer 查看是否正确