Opencv undistortPoints断言失败

Question

I am triyng to undistort an image with opencv undistortPoints function. I get the following assertion.

OpenCV Error: Assertion failed (src.isContinuous() && (src.depth() == CV_32F || src.depth() == CV_64F) && ((src.rows == 1 && src.channels() == 2) || src.cols*src.channels() == 2)) in cv::undistortPoints, file D:\\OpenCV\\2.4.11\\opencv\\sources\\modules\\imgproc\\src\\undistort.cpp, line 394

I can't firgure out why I get this assertion. Here is the code:

    cv::Mat pixel_locations_src = cv::Mat(src.size(), CV_32FC2);

    for (int i = 0; i < src.size().height; i++) 
    {
        for (int j = 0; j < src.size().width; j++) 
        {
            pixel_locations_src.at<cv::Point2f>(i,j) = cv::Point2f(j,i);
        }
    }

    cv::Mat pixel_locations_dst = cv::Mat(src.size(), CV_32FC2);

    std::cout<<cameraMatrix<<std::endl;
    std::cout<<distCoeffs<<std::endl;

    cv::undistortPoints(pixel_locations_src, pixel_locations_dst, cameraMatrix, distCoeffs);

This is what the input arguments look like:

pixel_locations_src is a 1920x1080 matrix. cameraMatrix is 3x3. distCoeffs is 8x1.

console output

Thanks for any help.

Answer 1

you have to do a proper fisheye calibration, to get the appropriate distortion coeffs.

if you're using opencv's calibration sample, enable it here (they are some configs for opencv)

then try again with the new distortion coeffs. (thanks to Berak)