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ImageTColor, TDepthHoughLines Method
http://www.emgu.com
Apply Canny Edge Detector follows by Probabilistic Hough transform to find line segments in the image

Namespace:  Emgu.CV
Assembly:  Emgu.CV.World (in Emgu.CV.World.dll) Version: 3.3.0.2824 (3.3.0.2824)
Syntax
public LineSegment2D[][] HoughLines(
	double cannyThreshold,
	double cannyThresholdLinking,
	double rhoResolution,
	double thetaResolution,
	int threshold,
	double minLineWidth,
	double gapBetweenLines
)

Parameters

cannyThreshold
Type: SystemDouble
The threshhold to find initial segments of strong edges
cannyThresholdLinking
Type: SystemDouble
The threshold used for edge Linking
rhoResolution
Type: SystemDouble
Distance resolution in pixel-related units.
thetaResolution
Type: SystemDouble
Angle resolution measured in radians
threshold
Type: SystemInt32
A line is returned by the function if the corresponding accumulator value is greater than threshold
minLineWidth
Type: SystemDouble
Minimum width of a line
gapBetweenLines
Type: SystemDouble
Minimum gap between lines

Return Value

Type: LineSegment2D
The line segments detected for each of the channels
See Also