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calculates matrix of perspective transform such that: (t_i x'_i,t_i y'_i,t_i)^T=map_matrix (x_i,y_i,1)T where dst(i)=(x'_i,y'_i), src(i)=(x_i,y_i), i=0..3.

Namespace: Emgu.CV
Assembly: Emgu.CV (in Emgu.CV.dll) Version: 2.3.0.1416 (2.3.0.1416)

Syntax

C#
public static IntPtr cvGetPerspectiveTransform(
	IntPtr src,
	IntPtr dst,
	IntPtr mapMatrix
)
Visual Basic
Public Shared Function cvGetPerspectiveTransform ( _
	src As IntPtr, _
	dst As IntPtr, _
	mapMatrix As IntPtr _
) As IntPtr
Visual C++
public:
static IntPtr cvGetPerspectiveTransform(
	IntPtr src, 
	IntPtr dst, 
	IntPtr mapMatrix
)

Parameters

src
Type: System..::..IntPtr
Coordinates of 4 quadrangle vertices in the source image
dst
Type: System..::..IntPtr
Coordinates of the 4 corresponding quadrangle vertices in the destination image
mapMatrix
Type: System..::..IntPtr
Pointer to the destination 3x3 matrix

Return Value

Pointer to the perspective transform matrix

See Also