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Description
he Hough Line tool finds straight lines present in
an image.
There are 3 stages to using the hough tools
- extract edges
- create hough image and extract it lines
- optionally find the origonal image points to each line and do best fit on these points
Inputs
CIFViewer
CIF
ROI
Edge Extraction Parameters
Smoothing
The Laplace Smoothign
Filter
The Edge Detect Operator
Sensitivity
The sensitivity for determine that this is an edge
MinEdgeStrength
Uses the Canny Hysterisis , ie an edge must have at leasst this edge strength.
ie dual threshold is applied. If the Edge does not anywher on the line have this
strength it is deteed
Hough Image Extraction Parameters
Angle Bin Size
In degrees the Angle Bin size
R Bin Size
The line distance bin size
MaxCount
Max Number of lines to be sort
DefineThreshold
The Min number of Hough points for the bin to be regarded as defining a line
BlockAngle
BlockRho
After a line is found this part of the Hough imnage is blocked out
Optional Edge Point Extraction Parameters
FitToPoints(Min)
The min number of points to define a line. If 0 this the edge point extraction is not used
FitTolerance
the tolerance in pixel of a endge point to be regarded as part of a line
Misc
Geometries
Count
CoordinateSystem
RenderStyle
RefreshViewer
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