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Hi again,

got the very current version installed now and played a bit with fisheye camera and the cv::fisheye commands.

After calibration, I tried the following: 1) fisheye-distort a point (via "fisheye.distortPoints") 2) fisheye-undistort the result of 1) (via "fisheye.undistortPoints") 3) Have a look at the result and wondering...

I thought that after distort and undistort I would get the original point (of course camera-matrix und distortion coefficients where the same in both methods). Except for the input (0,0) I get different values at the end.

Why do I get different values?

Thanks in advance!

Hi again,

got the very current version installed now and played a bit with fisheye camera and the cv::fisheye commands.

After calibration, I tried the following: following:

1) fisheye-distort a point (via "fisheye.distortPoints") "fisheye.distortPoints")

2) fisheye-undistort the result of 1) (via "fisheye.undistortPoints") "fisheye.undistortPoints")

3) Have a look at the result and wondering...

I thought that after distort and undistort I would get the original point (of course camera-matrix und distortion coefficients where the same in both methods). Except for the input (0,0) I get different values at the end.

Why do I get different values?

Thanks in advance!