基于opencv的图像梯形畸变（透视）校正

#include<cv.h>
#include<highgui.h>

//#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;
}