---
title: CVImageChromaField.SampleLocation.top
framework: corevideo
role: symbol
role_heading: Case
path: corevideo/cvimagechromafield/samplelocation/top
---

# CVImageChromaField.SampleLocation.top

Chroma sample is horizontally centered, but is co-sited with the top row of luma samples.

## Declaration

```swift
case top
```