opencv之WarpPerspective透视变化

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// opencv2.cpp : 定义控制台应用程序的入口点。//#include "stdafx.h"#include <opencv2/opencv.hpp>#include "opencv2/highgui/highgui.hpp"#include "opencv2/imgproc/imgproc.hpp"#include "opencv2/features2d/features2d.hpp"  #include "cv.h"#include "highgui.h"#include <cxcore.h>using namespace cv;using namespace std;int main(int argc, char **argv){CvPoint2D32f srcTri[4], dstTri[4];CvMat*       warp_mat = cvCreateMat(3, 3, CV_32FC1);IplImage*    src = NULL;IplImage*    dst = NULL;src = cvLoadImage("test.jpg", 1);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 * 0.05;dstTri[0].y = src->height * 0.33;dstTri[1].x = src->width * 0.9;dstTri[1].y = src->height * 0.25;dstTri[2].x = src->width * 0.2;dstTri[2].y = src->height * 0.7;dstTri[3].x = src->width * 0.8;dstTri[3].y = src->height * 0.9;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;}
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