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Module: | MatchingPro |
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Finds all occurrences of a predefined template on an image by comparing object edges.
Applications
Detection of multiple objects whose outlines are sharp and rigid. Often one of the first filters in a program.
Name | Type | Range | Description | |
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inImage | Image | Image on which object occurrences will be searched | |
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inSearchRegion | Region* | Region of possible object centers | |
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inEdgeModel | EdgeModel | Model of objects to be searched | |
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inMinPyramidLevel | Integer | 0 - 12 | Defines the lowest pyramid level at which object position is still refined |
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inMaxPyramidLevel | Integer* | 0 - 12 | Defines the total number of reduced resolution levels that can be used to speed up computations |
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inEdgeThreshold | Real | 0.01 - ![]() |
Minimum strength of edges used for matching with the model |
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inEdgePolarityMode | EdgePolarityMode | Defines how edges with reversed polarity will contribute to the object score | |
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inEdgeNoiseLevel | EdgeNoiseLevel | Defines how much noise the objects edges have | |
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inIgnoreBoundaryObjects | Bool | Flag indicating whether objects crossing image boundary should be ignored or not | |
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inMinScore | Real | 0.0 - 1.0 | Minimum score of object candidates accepted at each pyramid level |
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inMinDistance | Real | 0.0 - ![]() |
Minimum distance between two found objects |
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outObjects | Object2DArray | Found objects | |
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outObjectEdges | PathArrayArray | Model edges of the found objects | |
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outPyramidHeight | Integer | Highest pyramid level used to speed up computations | |
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diagEdgePyramid | ImageArray | Image edges used for matching at each pyramid level | |
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diagMatchPyramid | ImageArray | Candidate object locations found at each pyramid level | |
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diagScores | RealArrayArray | Scores of the found objects at each pyramid level |
Hardware Acceleration
This operation supports automatic parallelization for multicore and multiprocessor systems.
Complexity Level
This filter is available on Basic Complexity Level.