---
title: scaleFactor
framework: coreimage
role: symbol
role_heading: Type Property
path: coreimage/cirawfilteroption/scalefactor
---

# scaleFactor

A key for the scale factor.

## Declaration

```swift
static let scaleFactor: CIRAWFilterOption
```

## Discussion

Discussion The associated value is a floating-point value packaged as an NSNumber object that specifies the desired scale factor at which the image will be drawn. Setting this value can greatly improve the drawing performance. A value of 1 is the identity. In some cases, if you change the scale factor and enable draft mode, performance can decrease. See allowDraftMode.

## See Also

### Type Properties

- [activeKeys](coreimage/cirawfilteroption/activekeys.md)
- [allowDraftMode](coreimage/cirawfilteroption/allowdraftmode.md)
- [baselineExposure](coreimage/cirawfilteroption/baselineexposure.md)
- [boostAmount](coreimage/cirawfilteroption/boostamount.md)
- [boostShadowAmount](coreimage/cirawfilteroption/boostshadowamount.md)
- [ciInputEnableEDRModeKey](coreimage/cirawfilteroption/ciinputenableedrmodekey.md)
- [ciInputLocalToneMapAmountKey](coreimage/cirawfilteroption/ciinputlocaltonemapamountkey.md)
- [colorNoiseReductionAmount](coreimage/cirawfilteroption/colornoisereductionamount.md)
- [decoderVersion](coreimage/cirawfilteroption/decoderversion.md)
- [disableGamutMap](coreimage/cirawfilteroption/disablegamutmap.md)
- [enableChromaticNoiseTracking](coreimage/cirawfilteroption/enablechromaticnoisetracking.md)
- [enableSharpening](coreimage/cirawfilteroption/enablesharpening.md)
- [enableVendorLensCorrection](coreimage/cirawfilteroption/enablevendorlenscorrection.md)
- [ignoreImageOrientation](coreimage/cirawfilteroption/ignoreimageorientation.md)
- [imageOrientation](coreimage/cirawfilteroption/imageorientation.md)