#include <opencv/highgui.h>
#include <opencv/cv.h>
#include <opencv2/imgproc/imgproc_c.h>

using namespace cv;

int main(int argv, char **argc)
{
    IplImage *pstImage = NULL;
    IplImage *pstYUVImage = NULL;
    FILE *fp = NULL;

    pstImage = cvLoadImage("D:\\test.jpg", CV_LOAD_IMAGE_COLOR);
    fp = fopen("D://out.yuv", "wb");
    pstYUVImage = cvCreateImage(cvSize(pstImage->width, pstImage->height), IPL_DEPTH_8U, 3);

    cvCvtColor(pstImage, pstYUVImage, CV_BGR2YUV);
    
    for(int i = 0; i < pstImage->width * pstImage->height; i++)
    {
        //提取Y分量
        fwrite(&pstYUVImage->imageData[i*3], 1 , 1, fp);
        //提取U分量
        //fwrite(&pstYUVImage->imageData[i*3+2], 1 , 1, fp);
        //提取V分量
        //fwrite(&pstYUVImage->imageData[i*3+1], 1 , 1, fp);
    }

    for(int i = 0; i <  pstImage->height; i = i+2)
    {
        for(int j = 0; j < pstImage->width; j= j+2)
        {
            //提取U分量
            fwrite(&pstYUVImage->imageData[3*(i*pstImage->width + j)+2], 1 , 1, fp);
        }
    }
    
    for(int i = 0; i <  pstImage->height; i = i+2)
    {
        for(int j = 0; j < pstImage->width; j = j+2)
        {
            //提取V分量
            fwrite(&pstYUVImage->imageData[3*(i*pstImage->width + j)+1], 1 , 1, fp);
        }
    }
    
    cvShowImage("Win", pstImage);

    cvWaitKey(0);
    cvReleaseImage(&pstImage);
    cvReleaseImage(&pstYUVImage);
    fclose(fp);
    return 0;
}