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You are here: Start » Filter Reference » OpenCV » Structural Analysis and Shape Descriptors » cvArcLength
| Module: | OpenCV |
|---|
Calculates a contour perimeter or a curve length.
| Name | Type | Description | |
|---|---|---|---|
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inCurve | Path | Input curve. |
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inClosed | Bool | Flag indication whether the curve is closed or not. |
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outLength | Real | Length of curve. |
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 curve must not be empty in cvArcLength. |
Complexity Level
This filter is available on Basic Complexity Level.

Basic
