undistortPoints opencv

调用方法
std::vector inputDistortedPoints = ...
std::vector outputUndistortedPoints;
cv::Mat cameraMatrix = ...
cv::Mat distCoeffs = ...

cv::undistortPoints(inputDistortedPoints, outputUndistortedPoints, cameraMatrix, distCoeffs, cv::noArray(), cameraMatrix);
不要像下面这样调用,输出的点不正确
cv::undistortPoints(inputDistortedPoints, outputUndistortedPoints, cameraMatrix, distCoeffs)

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