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# ContoursObservation

An object that represents the detected contours in an image.

```
struct ContoursObservation
```

## Topics

### Creating an observation

[`init(VNContoursObservation)`](/documentation/Vision/ContoursObservation/init(_:))

Creates a contours observation.

### Inspecting an observation

[`var contourCount: Int`](/documentation/Vision/ContoursObservation/contourCount)

The total number of detected contours.

[`var normalizedPath: CGPath`](/documentation/Vision/ContoursObservation/normalizedPath)

The detected contours as a path object in normalized coordinates.

[`var topLevelContours: [ContoursObservation.Contour]`](/documentation/Vision/ContoursObservation/topLevelContours)

An array of contours that don’t have another contour enclosing them.

### Getting the contours

[`struct Contour`](/documentation/Vision/ContoursObservation/Contour)

An object that represents a detected contour in an image.

[`func contourAtIndex(Int) -> ContoursObservation.Contour?`](/documentation/Vision/ContoursObservation/contourAtIndex(_:))

Retrieves the contour object at the specified index, irrespective of hierarchy.

[`func countourAtIndexPath(IndexPath) -> ContoursObservation.Contour?`](/documentation/Vision/ContoursObservation/countourAtIndexPath(_:))

Retrieves the contour object at the specified index, irrespective of hierarchy.

## Relationships

### Conforms To

[`Encodable`](/documentation/Swift/Encodable)

[`Hashable`](/documentation/Swift/Hashable)

[`Equatable`](/documentation/Swift/Equatable)

[`Escapable`](/documentation/Swift/Escapable)

[`Sendable`](/documentation/Swift/Sendable)

[`CustomStringConvertible`](/documentation/Swift/CustomStringConvertible)

[`Decodable`](/documentation/Swift/Decodable)

[`Copyable`](/documentation/Swift/Copyable)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`VisionObservation`](/documentation/Vision/VisionObservation)

---

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