---
title: properties
framework: coreimage
role: symbol
role_heading: Type Property
path: coreimage/ciimageoption/properties
---

# properties

The key for image metadata properties.

## Declaration

```swift
static let properties: CIImageOption
```

## Discussion

Discussion To ensure that an image has no metadata properties, set the value of this key to [NSNull null]. For more information about image metadata properties, see Image Properties and CGImageMetadata.

## See Also

### Type Properties

- [applyOrientationProperty](coreimage/ciimageoption/applyorientationproperty.md)
- [auxiliaryDepth](coreimage/ciimageoption/auxiliarydepth.md)
- [auxiliaryDisparity](coreimage/ciimageoption/auxiliarydisparity.md)
- [auxiliaryHDRGainMap](coreimage/ciimageoption/auxiliaryhdrgainmap.md)
- [auxiliaryPortraitEffectsMatte](coreimage/ciimageoption/auxiliaryportraiteffectsmatte.md)
- [auxiliarySemanticSegmentationGlassesMatte](coreimage/ciimageoption/auxiliarysemanticsegmentationglassesmatte.md)
- [auxiliarySemanticSegmentationHairMatte](coreimage/ciimageoption/auxiliarysemanticsegmentationhairmatte.md)
- [auxiliarySemanticSegmentationSkinMatte](coreimage/ciimageoption/auxiliarysemanticsegmentationskinmatte.md)
- [auxiliarySemanticSegmentationSkyMatte](coreimage/ciimageoption/auxiliarysemanticsegmentationskymatte.md)
- [auxiliarySemanticSegmentationTeethMatte](coreimage/ciimageoption/auxiliarysemanticsegmentationteethmatte.md)
- [cacheImmediately](coreimage/ciimageoption/cacheimmediately.md)
- [colorSpace](coreimage/ciimageoption/colorspace.md)
- [expandToHDR](coreimage/ciimageoption/expandtohdr.md)
- [nearestSampling](coreimage/ciimageoption/nearestsampling.md)
- [providerTileSize](coreimage/ciimageoption/providertilesize.md)