---
title: CVImageChromaField.ChromaSubsampling
framework: corevideo
role: symbol
role_heading: Enumeration
path: corevideo/cvimagechromafield/chromasubsampling
---

# CVImageChromaField.ChromaSubsampling

Original format of subsampled data in the image buffer before conversion to 422/2vuy format.

## Declaration

```swift
enum ChromaSubsampling
```

## Overview

Overview Note: To use these values, ensure that the image buffer data was converted to 4:2:2 format using simple pixel replication.

## Topics

### Enumeration Cases

- [CVImageChromaField.ChromaSubsampling.4:1:1](corevideo/cvimagechromafield/chromasubsampling/4:1:1.md)
- [CVImageChromaField.ChromaSubsampling.4:2:0](corevideo/cvimagechromafield/chromasubsampling/4:2:0.md)
- [CVImageChromaField.ChromaSubsampling.4:2:2](corevideo/cvimagechromafield/chromasubsampling/4:2:2.md)

## Relationships

### Conforms To

- [CVAttachmentValueRepresentable](corevideo/cvattachmentvaluerepresentable.md)
- [Copyable](swift/copyable.md)
- [Equatable](swift/equatable.md)
- [Escapable](swift/escapable.md)
- [Hashable](swift/hashable.md)
- [RawRepresentable](swift/rawrepresentable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)