---
title: gammaLevel
framework: corevideo
role: symbol
role_heading: Type Property
path: corevideo/cvimagebufferattachmentkeydefinitions/gammalevel
---

# gammaLevel

The gamma level for the image buffer.

## Declaration

```swift
static var gammaLevel: CVAttachmentKeyDefinition<Self.ShouldPropagate, Double> { get }
```