Enum ChessboardFlags

Namespace

OpenCvSharp

Assembly

OpenCvSharp.dll

Various operation flags for cvFindChessboardCorners

[Flags]
public enum ChessboardFlags

Fields

Accuracy = 32

Up sample input image to improve sub-pixel accuracy due to aliasing effects. This should be used if an accurate camera calibration is required.

AdaptiveThresh = 1

Use adaptive thresholding to convert the image to black-n-white, rather than a fixed threshold level (computed from the average image brightness).

Exhaustive = 16

Run an exhaustive search to improve detection rate.

FastCheck = 8

Run a fast check on the image that looks for chessboard corners, and shortcut the call if none is found. This can drastically speed up the call in the degenerate condition when no chessboard is observed.

FilterQuads = 4

Use additional criteria (like contour area, perimeter, square-like shape) to filter out false quads that are extracted at the contour retrieval stage.

None = 0

NormalizeImage = 2

Normalize the image using cvNormalizeHist before applying fixed or adaptive thresholding.