cvFindChessboardCorners Method (image, patternSize, corners, cornerCount, flags)

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Attempts to determine whether the input image is a view of the chessboard pattern and locate internal chessboard corners

Declaration Syntax

Visual Basic

Visual C++

public static int cvFindChessboardCorners(
	IntPtr image,
	Size patternSize,
	IntPtr corners,
	ref int cornerCount,
	CALIB_CB_TYPE flags
)

Public Shared Function cvFindChessboardCorners ( _
	image As IntPtr, _
	patternSize As Size, _
	corners As IntPtr, _
	ByRef cornerCount As Integer, _
	flags As CALIB_CB_TYPE _
) As Integer

public:
static int cvFindChessboardCorners(
	IntPtr image, 
	Size patternSize, 
	IntPtr corners, 
	int% cornerCount, 
	CALIB_CB_TYPE flags
)

Parameters

image (IntPtr): Source chessboard view; it must be 8-bit grayscale or color image

patternSize (Size): The number of inner corners per chessboard row and column

corners (IntPtr): The output array of corners detected

cornerCount ( Int32 %): The output corner counter. If it is not NULL, the function stores there the number of corners found

flags (CALIB_CB_TYPE): Various operation flags

Return Value

Non-zero value if all the corners have been found and they have been placed in a certain order (row by row, left to right in every row), otherwise, if the function fails to find all the corners or reorder them, it returns 0

Remarks

The coordinates detected are approximate, and to determine their position more accurately, the user may use the function cvFindCornerSubPix

Assembly: Emgu.CV (Module: Emgu.CV) Version: 1.5.0.0 (1.5.0.0)