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opencv - OpenCV fisheye::projectpoints 断言失败

问题描述

我想在使用opencv 4.0.1 c++的图像上投影一个点（-1450，-1660）我有相机矩阵和失真系数，我的代码是

    vector <Point3f> inputpoints;
    Point3f myPoint;
    myPoint.x = -1450;
    myPoint.y = -1660;
    myPoint.z = 0;
    inputpoints.push_back(myPoint);

    vector<Point2f> outputpoints;

    vector<Point3f> tvec;
    tvec.push_back(Point3f(0, 0, 0));

    vector<Point3f> rvec;
    rvec.push_back(Point3f(0, 0, 0));

    double mydata[9] = { 3.3202343554882879e+02, 1., 6.4337059696010670e+02, 0, 3.3196938477610536e+02, 5.3844814394773562e+02, 0., 0., 1. };

    Mat mycameraMatrix = Mat(3, 3, CV_64F, mydata);

    double mydata2[4] = { -1.1129472191078109e-03, 4.9443845791693870e-02,
        -7.2244333582166609e-03, -1.7309984187889034e-03 };

    Mat mydiscoff = Mat{ 4,1, CV_64F ,mydata2 };
    Mat newCamMat1= Mat(3, 3, CV_64F);

   cv::fisheye::projectPoints(inputpoints, rvec, tvec, mycameraMatrix, mydiscoff, outputpoints);

当我运行程序时，我得到了这个异常

OpenCV(4.0.1) Error: Assertion failed (mtype == type0 || (CV_MAT_CN(mtype) == CV_MAT_CN(type0) && ((1 << type0) & fixedDepthMask) != 0)) in cv::debug_build_guard::_OutputArray::create, file c:\build\master_winpack-build-win64-vc15\opencv\modules\core\src\matrix_wrap.cpp, line 1395

我将相机矩阵的类型和畸变系数更改为 CV_32f 但我仍然遇到同样的错误，我是 openCV 的初学者 ..所以谁能告诉我是什么导致了这个异常？我知道 rvec 应该是 3*3 但我只是跟着别人写的代码可以这样写

标签： opencv

解决方案

好的，问题是 projectpoints 和 fisheye::projectpoints 的参数顺序不同..所以我把属于 projectpoints 的顺序放在了

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