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# VNFaceLandmarkRegion2D

2D geometry information for a specific facial feature.

```
class VNFaceLandmarkRegion2D
```

## Overview

This class represents the set of all facial landmark regions in 2D, exposed as properties.

## Topics

### Describing Region Points

[`pointsClassification`](/documentation/Vision/VNFaceLandmarkRegion2D/pointsClassification)

An enumeration that describes how to interpret the points the region provides.

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

The set of classifications that describe how to interpret the points the region provides.

### Specifying Region Properties

[`normalizedPoints`](/documentation/Vision/VNFaceLandmarkRegion2D/normalizedPoints-7s7im)

The array of normalized landmark points.

[`precisionEstimatesPerPoint`](/documentation/Vision/VNFaceLandmarkRegion2D/precisionEstimatesPerPoint-5jl22)

Requests an array of precision estimates for each landmark point.

[`normalizedPoints`](/documentation/Vision/VNFaceLandmarkRegion2D/normalizedPoints-1o38f)

A buffer in memory containing normalized landmark points.

[`precisionEstimatesPerPoint`](/documentation/Vision/VNFaceLandmarkRegion2D/precisionEstimatesPerPoint-3kx5a)

An array of precision estimates for each landmark point.

### Computing Feature Points

[`pointsInImage(imageSize:)`](/documentation/Vision/VNFaceLandmarkRegion2D/pointsInImage(imageSize:))

Returns an array containing landmark points in the coordinate space of the specified image size.

[`pointsInImageOfSize:`](/documentation/Vision/VNFaceLandmarkRegion2D/pointsInImageOfSize:)

A buffer in memory containing landmark points in the coordinate space of the specified image size.


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