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# FeaturePrintObservation

An observation that provides the recognized feature print.

```
struct FeaturePrintObservation
```

## Topics

### Creating an observation

[`init(VNFeaturePrintObservation)`](/documentation/Vision/FeaturePrintObservation/init(_:))

Creates a feature print observation.

### Inspecting an observation

[`let data: Data`](/documentation/Vision/FeaturePrintObservation/data)

The feature print data.

[`let elementCount: Int`](/documentation/Vision/FeaturePrintObservation/elementCount)

The total number of elements in the data.

[`let elementType: ElementType`](/documentation/Vision/FeaturePrintObservation/elementType)

The type of each element in the data.

[`enum ElementType`](/documentation/Vision/ElementType)

The type of element in feature print data.

### Getting the distance

[`func distance(to: FeaturePrintObservation) throws -> Double`](/documentation/Vision/FeaturePrintObservation/distance(to:))

Computes the distance between two feature print observations.

## Relationships

### Conforms To

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

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

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

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

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

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

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

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

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

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

---

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