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Locates the strongest transition between dark and bright pixels along a given path.
Namespace: | AvlNet |
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Assembly: | AVL.NET.dll |
Syntax
public static void ScanSingleEdge ( AvlNet.Image inImage, AvlNet.ScanMap inScanMap, AvlNet.EdgeScanParams inEdgeScanParams, AvlNet.Selection inEdgeSelection, AvlNet.LocalBlindness? inLocalBlindness, out AvlNet.Edge1D? outEdge )
Parameters
Name | Type | Range | Default | Description | |
---|---|---|---|---|---|
![]() | inImage | AvlNet.Image | Input image. | ||
![]() | inScanMap | AvlNet.ScanMap | Data precomputed with CreateScanMap. | ||
![]() | inEdgeScanParams | AvlNet.EdgeScanParams | Parameters controlling the edge extraction process. | ||
![]() | inEdgeSelection | AvlNet.Selection | avl::Selection::Best | Selection mode of the resulting edge. Default value: avl::Selection::Best. | |
![]() | inLocalBlindness | AvlNet.LocalBlindness? | Defines conditions in which weaker edges can be detected in the vicinity of stronger edges. Default value: atl::NIL, or null. | ||
![]() | outEdge | AvlNet.Edge1D? | Found edge. |
Description
The operation scans the image using inScanMap previously generated from a scan path and locates the strongest edge perpendicular to the path. If the strongest edge is weaker than inEdgeScanParams.minMagnitude then the outputs are set to NIL.
Examples
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ScanSingleEdge locates the strongest edge using a scan map representing the scan path above.
Remarks
For more information about local coordinate systems please refer to the following article.
This filter is a part of the 1D Edge Detection toolset. For a comprehensive introduction to this technique please refer to 1D Edge Detection and 1D Edge Detection - Subpixel Precision chapters of our Machine Vision Guide.
See also
- ScanSingleEdge(AvlNet.Image, AvlNet.ScanMap, AvlNet.EdgeScanParams, AvlNet.Selection, AvlNet.Edge1D?)
- ScanSingleEdge(AvlNet.Image, AvlNet.ScanMap, AvlNet.EdgeScanParams, AvlNet.Selection, AvlNet.Edge1D?, AvlNet.Profile, AvlNet.Profile)
- ScanSingleEdge(AvlNet.Image, AvlNet.ScanMap, AvlNet.EdgeScanParams, AvlNet.Selection, AvlNet.LocalBlindness?, AvlNet.Edge1D?, AvlNet.Profile, AvlNet.Profile)
- Class Reference
- AVL Class