---
title: CISharpenLuminance
framework: coreimage
role: symbol
role_heading: Protocol
path: coreimage/cisharpenluminance
---

# CISharpenLuminance

The properties you use to configure a sharpen luminance filter.

## Declaration

```swift
protocol CISharpenLuminance : CIFilterProtocol
```

## Topics

### Instance Properties

- [inputImage](coreimage/cisharpenluminance/inputimage.md)
- [radius](coreimage/cisharpenluminance/radius.md)
- [sharpness](coreimage/cisharpenluminance/sharpness.md)

## Relationships

### Inherits From

- [CIFilterProtocol](coreimage/cifilterprotocol.md)

## See Also

### Related Documentation

- [sharpenLuminance()](coreimage/cifilter-swift.class/sharpenluminance().md)

### Protocols

- [CIUnsharpMask](coreimage/ciunsharpmask.md)