FindHomography Method (srcPoints, dstPoints, method, ransacReprojThreshold)

www.emgu.com/wiki

Use the specific method to find perspective transformation H=||h_ij|| between the source and the destination planes

Declaration Syntax

Visual Basic

Visual C++

public static Matrix<float> FindHomography(
	Matrix<float> srcPoints,
	Matrix<float> dstPoints,
	HOMOGRAPHY_METHOD method,
	double ransacReprojThreshold
)

Public Shared Function FindHomography ( _
	srcPoints As Matrix(Of Single), _
	dstPoints As Matrix(Of Single), _
	method As HOMOGRAPHY_METHOD, _
	ransacReprojThreshold As Double _
) As Matrix(Of Single)

public:
static Matrix<float>^ FindHomography(
	Matrix<float>^ srcPoints, 
	Matrix<float>^ dstPoints, 
	HOMOGRAPHY_METHOD method, 
	double ransacReprojThreshold
)

Parameters

srcPoints (Matrix<(Of <(Single>)>)): Point coordinates in the original plane, 2xN, Nx2, 3xN or Nx3 array (the latter two are for representation in homogenious coordinates), where N is the number of points

dstPoints (Matrix<(Of <(Single>)>)): Point coordinates in the destination plane, 2xN, Nx2, 3xN or Nx3 array (the latter two are for representation in homogenious coordinates)

method (HOMOGRAPHY_METHOD): FindHomography method

ransacReprojThreshold (Double): The maximum allowed reprojection error to treat a point pair as an inlier. The parameter is only used in RANSAC-based homography estimation. E.g. if dst_points coordinates are measured in pixels with pixel-accurate precision, it makes sense to set this parameter somewhere in the range ~1..3

Return Value

The 3x3 homography matrix.

Assembly: Emgu.CV (Module: Emgu.CV) Version: 1.4.3249.6313 (1.4.0.0)