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	You are here: Start » Filter Reference » OpenCV » Structural Analysis and Shape Descriptors » cvMatchShapes_Polygon
| Module: | OpenCV | 
|---|
Compares two shapes.
| Name | Type | Description | |
|---|---|---|---|
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				inPolygon1 | Path | First input shape. | 
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				inPolygon2 | Path | Second input shape. | 
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				inMethod | CvShapeMatchingMethod | Comparison method. | 
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				inParameter | Real | Method-specific parameter. | 
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				outScore | Real | 
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 | Input polygons must not be empty in cvMatchShapes_Shapes. | 
Complexity Level
This filter is available on Basic Complexity Level.

 Basic
