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FIL.DetectCalibrationGrid_Circles

Detects an arbitrary size symmetric circle pattern on the image.

Namespace:FilNet
Assembly:FIL.NET.dll

Syntax

C++
C#
 
public static void DetectCalibrationGrid_Circles
(
	FilNet.Image inImage,
	NullableRef<FilNet.Region> inRoi,
	float inCircleRadius,
	float inCircleDetectionThreshold,
	FilNet.Polarity inCirclePolarity,
	IList<FilNet.AnnotatedPoint2D> outImageGrid
)

Parameters

Name Type Range Default Description
inImageFilNet.ImageInput image.
inRoiFilNet.NullableRef<FilNet.Region>Range of pixels to be processed. Default value: ftl::NIL.
inCircleRadiusfloat<1.0f, INF>Circle radius measured in input image pixels.
inCircleDetectionThresholdfloat<0.0f, INF>20.0fDetection threshold (relative to local image patch). Default value: 20.0f.
inCirclePolarityFilNet.PolarityAnyCircle intensity with respect to background. Default value: Any.
outImageGridSystem.Collections.Generic.IList<FilNet.AnnotatedPoint2D>Detected grid.

Examples

Input image for DetectCalibrationGrid_Circles executed with inCircleRadius = 5

Detected calibration points

Remarks

The circle pattern must be a rectangular grid, with equal spacing in both dimensions.

Errors

List of possible exceptions:

Error type Description
DomainError Not supported inImage pixel format.
DomainError Region of interest exceeds an input image.
DomainError Not supported inImage pixel format in DetectCalibrationGrid_Circles. Supported formats: UInt8.

Function Overrides

See also