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# CISharpenLuminance

The properties you use to configure a sharpen luminance filter.

```
protocol CISharpenLuminance : CIFilterProtocol
```

## Topics

### Instance Properties

[`inputImage`](/documentation/CoreImage/CISharpenLuminance/inputImage)

The image to use as an input image.

[`radius`](/documentation/CoreImage/CISharpenLuminance/radius)

The distance from the center of the effect.

[`sharpness`](/documentation/CoreImage/CISharpenLuminance/sharpness)

The amount of sharpening to apply.

## See Also

[`sharpenLuminance()`](/documentation/CoreImage/CIFilter-swift.class/sharpenLuminance())

Applies a sharpening effect to an image.


---

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