I'm trying to do fish an image by providing "camera_matrix" and "distortion_coefficients" to cv::fisheye::undistortImage. problem is I'm getting Assertion error. Reason is the distortion coefficients which i'm getting through camera calibration are 5x1
<distortion_coefficients type_id="opencv-matrix">
<rows>5</rows>
<cols>1</cols>
<dt>d</dt>
<data>
-2.0834245161331000e-01 5.8179563841609050e-02 0. 0.
-8.0440183287724919e-03</data></distortion_coefficients>
but undistortImage method accepts 4X1 distortion matrix. Any idea whats the way around to this problem