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DetectPaths


Finds paths in an image.

Name Type Range Description
inImage Image Input image
inRoi Region* Input region of interest
inPath Path Input path
inMinScore Real 0.0 - Minimum matching score
inEdgeThreshold Real Minimum accepted edge magnitude
outPaths PathArray Output paths
outScores RealArray Output scores
diagGradientMagnitudeImage Image Visualized gradients magnitude of an input image
diagScoreImage Image Calculated score for each pixel of an input image

Description

The operation detects paths in the inImage using the Generalized Hough Transform approach. The output array is ordered from best matching to worst matching results.

Examples

A sample path (scaled for convenience).

DetectPaths performed on the sample images with inMinScore = 0.7.

Remarks

DetectPaths is not scale- or rotation-invariant (slightly scaled or rotated paths are, however, detected properly).

Long inPaths cause long computation time.

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
DomainError Degenerate path in DetectPaths.

Complexity Level

This filter is available on Expert Complexity Level.

See Also