如何使用cv :: warpPerspective进行透视图转换? [英] How to use cv::warpPerspective for the perspective transformation?

问题描述

我正在尝试纠正图像.我有点对应关系，并且我计算了矩阵F1和F2.之后，我要纠正.以下是我的代码

I am trying to rectify images. I have point correspondences and I computed both of the matrices F1 and F2. After that, I want to rectify. following is my code

     cv::Mat F1(4,4, CV_64FC1);
     cv::Mat F2(4,4, CV_64FC1);

    CvMat* points1 = cvCreateMat(8,1,CV_64FC2);
CvMat* points2 = cvCreateMat(8,1,CV_64FC2);



    for (int i=0; i<8; i++) {
                cvSet2D(points1,i,0,cvScalar(gt[i].xL,gt[i].yL));
        cvSet2D(points2,i,0,cvScalar(gt[i].xR,gt[i].yR));
    }

    cv::Size size (imgL->width, imgL->height);
    cv::stereoRectifyUncalibrated(points1, points2, F, size, F1, F2);


IplImage* rectL = cvCreateImage(cvSize(imgL->width,imgL->height), imgL->depth, imgL->nChannels);


cv::warpPerspective(imgL, rectL , F1, size);


cvSaveImage("rectL.jpg", rectL);

错误如下

    error: in passing argument 2 of ‘void cv::warpPerspective(const cv::Mat&, cv::Mat&, const cv::Mat&, cv::Size, int, int, const cv::Scalar&)’

如果我确实按如下方式创建CvMat

And if I do create a CvMat as follows

    CvMat* rectified1 = cvCreateMat(imgL->width,imgL->height,imgL->depth);


    cv::warpPerspective(imgL, *rectified1, F1,size);


   cvSaveImage("rectified1.png", imgL);

然后错误是保存图像.它说无法识别此数组.

Then the error is in saving the image. It say that this array is not recognized.

我想知道是否有人可以帮助我.

I am wondering if someone could please help me in this.

非常感谢.

推荐答案

cvMat和cv::Mat是两件事. cvMat 已过时.如果将所有内容都转换为cv :: Mat，它应该解决您的问题.

cvMat and cv::Mat are two different things. cvMat is obsolete. If you convert everything to cv::Mat it should take care of your problem.

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