---
title: CINoiseReduction
framework: coreimage
role: symbol
role_heading: Protocol
path: coreimage/cinoisereduction
---

# CINoiseReduction

The properties you use to configure a noise reduction filter.

## Declaration

```swift
protocol CINoiseReduction : CIFilterProtocol
```

## Topics

### Instance Properties

- [inputImage](coreimage/cinoisereduction/inputimage.md)
- [noiseLevel](coreimage/cinoisereduction/noiselevel.md)
- [sharpness](coreimage/cinoisereduction/sharpness.md)

## Relationships

### Inherits From

- [CIFilterProtocol](coreimage/cifilterprotocol.md)

## See Also

### Related Documentation

- [noiseReduction()](coreimage/cifilter-swift.class/noisereduction().md)

### Protocols

- [CIBokehBlur](coreimage/cibokehblur.md)
- [CIBoxBlur](coreimage/ciboxblur.md)
- [CIDiscBlur](coreimage/cidiscblur.md)
- [CIGaussianBlur](coreimage/cigaussianblur.md)
- [CIMaskedVariableBlur](coreimage/cimaskedvariableblur.md)
- [CIMedian](coreimage/cimedian.md)
- [CIMorphologyGradient](coreimage/cimorphologygradient.md)
- [CIMorphologyMaximum](coreimage/cimorphologymaximum.md)
- [CIMorphologyMinimum](coreimage/cimorphologyminimum.md)
- [CIMorphologyRectangleMaximum](coreimage/cimorphologyrectanglemaximum.md)
- [CIMorphologyRectangleMinimum](coreimage/cimorphologyrectangleminimum.md)
- [CIMotionBlur](coreimage/cimotionblur.md)
- [CIZoomBlur](coreimage/cizoomblur.md)