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Cv2.GetOptimalNewCameraMatrix Method (Double[,],Double[], Size, Double, Size, Rect, Boolean)

Returns the new camera matrix based on the free scaling parameter.

Namespace:  OpenCvSharp
Assembly:  OpenCvSharp (in OpenCvSharp.dll) Version: 3.4.1.20180605-33-CaRLSharp
Syntax
public static double[,] GetOptimalNewCameraMatrix(
	double[,] cameraMatrix,
	double[] distCoeffs,
	Size imageSize,
	double alpha,
	Size newImgSize,
	out Rect validPixROI,
	bool centerPrincipalPoint = false
)

Parameters

cameraMatrix
Type:System.Double[,]
Input camera matrix.
distCoeffs
Type:System.Double[]
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 array is null, the zero distortion coefficients are assumed.
imageSize
Type: OpenCvSharp.Size
Original image size.
alpha
Type: System.Double
Free scaling parameter between 0 (when all the pixels in the undistorted image are valid) and 1 (when all the source image pixels are retained in the undistorted image).
newImgSize
Type: OpenCvSharp.Size
Image size after rectification. By default,it is set to imageSize .
validPixROI
Type: OpenCvSharp.Rect
Optional output rectangle that outlines all-good-pixels region in the undistorted image. See roi1, roi2 description in stereoRectify() .
centerPrincipalPoint (Optional)
Type: System.Boolean
Optional flag that indicates whether in the new camera matrix the principal point should be at the image center or not. By default, the principal point is chosen to best fit a subset of the source image (determined by alpha) to the corrected image.

Return Value

Type:Double[,]
optimal new camera matrix
See Also