Distorts 2D points using fisheye model

distorted = cv.fisheyeDistortPoints(undistorted, K, D);
[...] = cv.fisheyeDistortPoints(..., 'OptionName',optionValue, ...);

Input

• undistorted Object points. A Nx2, 1xNx2, or Nx1x2 array, where N is the number of points in the view.
• K Camera matrix 3x3, K = [fx 0 cx; 0 fy cy; 0 0 1].
• D Input vector of distortion coefficients [k1,k2,k3,k4].

Output

• distorted Output array of image points.

Options

• Alpha The skew coefficient. default 0

Note that the function assumes the camera matrix of the undistorted points to be identity. This means if you want to transform back points undistorted with cv.fisheyeUndistortPoints you have to multiply them with inv(P).