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# VNFeaturePrintObservation

An observation that provides the recognized feature print.

```
class VNFeaturePrintObservation
```

## Topics

### Fetching Feature Print Data

[`data`](/documentation/Vision/VNFeaturePrintObservation/data)

The feature print data.

[`elementCount`](/documentation/Vision/VNFeaturePrintObservation/elementCount)

The total number of elements in the data.

### Determining Types of Feature Prints

[`elementType`](/documentation/Vision/VNFeaturePrintObservation/elementType)

The type of each element in the data.

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

An enumeration of the type of element in feature print data.

[`VNElementTypeSize(_:)`](/documentation/Vision/VNElementTypeSize(_:))

Returns the size of a feature print element.

### Computing Distance Between Features

[`computeDistance(_:to:)`](/documentation/Vision/VNFeaturePrintObservation/computeDistance(_:to:))

Computes the distance between two feature print observations.


---

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