---
title: sigma
framework: coreimage
role: symbol
role_heading: Instance Property
path: coreimage/ciblurredrectanglegenerator/sigma
---

# sigma

## Declaration

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

## See Also

### Instance Properties

- [color](coreimage/ciblurredrectanglegenerator/color.md)
- [extent](coreimage/ciblurredrectanglegenerator/extent.md)