Start » Filter Reference » OpenCV » Structural Analysis and Shape Descriptors » cvArcLength
Basic| Module: | OpenCV |
|---|
Calculates a contour perimeter or a curve length.
| Name | Type | Description | |
|---|---|---|---|
 |
inCurve | Path | Input curve. |
|
inClosed | Bool | Flag indication whether the curve is closed or not. |
 |
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.