Cv2Undistort Method OpenCvSharp Class Library
corrects lens distortion for the given camera matrix and distortion coefficients

Namespace:  OpenCvSharp.CPlusPlus
Assembly:  OpenCvSharp.CPlusPlus (in OpenCvSharp.CPlusPlus.dll) Version: 1.0.0.0 (1.0.0.0)
Syntax

public static void Undistort(
	InputArray src,
	OutputArray dst,
	InputArray cameraMatrix,
	InputArray distCoeffs,
	InputArray newCameraMatrix = null
)

Parameters

src
Type: OpenCvSharp.CPlusPlusInputArray
Input (distorted) image.
dst
Type: OpenCvSharp.CPlusPlusOutputArray
Output (corrected) image that has the same size and type as src .
cameraMatrix
Type: OpenCvSharp.CPlusPlusInputArray
Input camera matrix
distCoeffs
Type: OpenCvSharp.CPlusPlusInputArray
Input vector of distortion coefficients (k_1, k_2, p_1, p_2[, k_3[, k_4, k_5, k_6]]) of 4, 5, or 8 elements. If the vector is null, the zero distortion coefficients are assumed.
newCameraMatrix (Optional)
Type: OpenCvSharp.CPlusPlusInputArray
Camera matrix of the distorted image. By default, it is the same as cameraMatrix but you may additionally scale and shift the result by using a different matrix.
See Also

Reference