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Module: | Calibration |
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Detects a chessboard calibration grid on the image, and returns calibration points where 4 chessboard squares meet.
Applications
Camera calibration, image to world coordinates transformations.
Name | Type | Range | Description | |
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inImage | Image | Input image | ||
inRoi | Region* | Range of pixels to be processed | ||
inBoardSize | Size | Number of checkerboard squares in X and Y dimensions. | ||
inWorldSquareSize | Real | 0.001 - | Real-world length of a single chessboard square. | |
inFastApproximate | Bool | Fast filter execution, but result is approximate. | ||
outImagePoints | Point2DArray? | Image coordinates of detected calibration points. | ||
outWorldPlanePoints | Point2DArray? | World plane coordinates of detected calibration points. |
Errors
This filter can throw an exception to report error. Read how to deal with errors in Error Handling.
List of possible exceptions:
Error type | Description |
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DomainError | Input image is too small |
DomainError | Input image must have pixels of UInt8 type |
DomainError | Specified board is too small, minimum size is 4x4 |
Complexity Level
This filter is available on Advanced Complexity Level.