---
title: radius
framework: coreimage
role: symbol
role_heading: Instance Property
path: coreimage/cisharpenluminance/radius
---

# radius

The distance from the center of the effect.

## Declaration

```swift
var radius: Float { get set }
```

## See Also

### Instance Properties

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