基于opencv的图像梯形畸变（透视）校正

#include
#include

//#pragma comment(lib, "cv.lib")
//#pragma comment(lib, "cxcore.lib")
//#pragma comment(lib, "highgui.lib")

int main()
{
    CvPoint2D32f srcTri[4], dstTri[4];
    CvMat*       warp_mat = cvCreateMat(3, 3, CV_32FC1);
    IplImage*    src = NULL;
    IplImage*    dst = NULL;

    src = cvLoadImage("E:\\图像处理\\6.bmp");//("D:\\1.jpg");//("E:\\图像处理\\25.bmp");
    dst = cvCloneImage(src);
    dst->origin = src->origin;
    cvZero(dst);

    srcTri[0].x = 0;
    srcTri[0].y = 0;
    srcTri[1].x = src->width-1;
    srcTri[1].y = 0;
    srcTri[2].x = 0;
    srcTri[2].y = src->height-1;
    srcTri[3].x = src->width-1;
    srcTri[3].y = src->height-1;

    dstTri[0].x = src->width *0;
    dstTri[0].y = src->height * 0;
    dstTri[1].x = src->width * 0.9;
    dstTri[1].y = src->height * 0;
    dstTri[2].x = src->width * 0.21;
    dstTri[2].y = src->height ;
    dstTri[3].x = src->width*0.71 ;
    dstTri[3].y = src->height ;

    cvGetPerspectiveTransform(srcTri, dstTri, warp_mat);
    cvWarpPerspective(src, dst, warp_mat);

    cvNamedWindow("src", 1);
    cvShowImage("src", src);
    cvNamedWindow("Affine_Transform", 1);
    cvShowImage("Affine_Transform", dst);

    cvWaitKey(0);

    cvReleaseImage(&src);
    cvReleaseImage(&dst);
    cvReleaseMat(&warp_mat);

    return 0;
}

运行效果