---
title: "copy(contentAverageLightLevel:)"
framework: coregraphics
role: symbol
role_heading: Instance Method
path: "coregraphics/cgimage/copy(contentaveragelightlevel:)"
---

# copy(contentAverageLightLevel:)

## Declaration

```swift
func copy(contentAverageLightLevel avll: Float) -> CGImage?
```

## See Also

### Adopting high dynamic range (HDR)

- [Enhancing high dynamic range image rendering](coregraphics/adopting-advancements-in-hdr-image-rendering.md)
- [contentHeadroom](coregraphics/cgimage/contentheadroom.md)
- [calculatedContentHeadroom](coregraphics/cgimage/calculatedcontentheadroom.md)
- [contentAverageLightLevel](coregraphics/cgimage/contentaveragelightlevel.md)
- [calculatedContentAverageLightLevel](coregraphics/cgimage/calculatedcontentaveragelightlevel.md)
- [copyWithCalculatedHDRStats()](coregraphics/cgimage/copywithcalculatedhdrstats().md)