---
title: NormalizedRegion
framework: vision
role: symbol
role_heading: Type Alias
path: vision/normalizedregion
---

# NormalizedRegion

A polygon composed of normalized points.

## Declaration

```swift
typealias NormalizedRegion = ContoursObservation.Contour
```

## See Also

### Image locations and regions

- [NormalizedPoint](vision/normalizedpoint.md)
- [NormalizedRect](vision/normalizedrect.md)
- [NormalizedCircle](vision/normalizedcircle.md)
- [BoundingBoxProviding](vision/boundingboxproviding.md)
- [BoundingRegionProviding](vision/boundingregionproviding.md)
- [QuadrilateralProviding](vision/quadrilateralproviding.md)
- [CoordinateOrigin](vision/coordinateorigin.md)