---
title: CVImageBufferAttachmentKeyDefinitions
framework: corevideo
role: symbol
role_heading: Protocol
path: corevideo/cvimagebufferattachmentkeydefinitions
---

# CVImageBufferAttachmentKeyDefinitions

A namespace for image buffer attachment keys.

## Declaration

```swift
protocol CVImageBufferAttachmentKeyDefinitions : CVAttachmentKeyDefinitions
```

## Topics

### Type Properties

- [alphaChannelIsOpaque](corevideo/cvimagebufferattachmentkeydefinitions/alphachannelisopaque.md)
- [alphaChannelMode](corevideo/cvimagebufferattachmentkeydefinitions/alphachannelmode.md)
- [ambientViewingEnvironment](corevideo/cvimagebufferattachmentkeydefinitions/ambientviewingenvironment.md)
- [chromaField](corevideo/cvimagebufferattachmentkeydefinitions/chromafield.md)
- [cleanAperture](corevideo/cvimagebufferattachmentkeydefinitions/cleanaperture.md)
- [colorPrimaries](corevideo/cvimagebufferattachmentkeydefinitions/colorprimaries.md)
- [colorSpace](corevideo/cvimagebufferattachmentkeydefinitions/colorspace.md)
- [contentLightLevelInfo](corevideo/cvimagebufferattachmentkeydefinitions/contentlightlevelinfo.md)
- [displayDimensions](corevideo/cvimagebufferattachmentkeydefinitions/displaydimensions.md)
- [displayMaskRectangle](corevideo/cvimagebufferattachmentkeydefinitions/displaymaskrectangle.md)
- [fieldDetail](corevideo/cvimagebufferattachmentkeydefinitions/fielddetail.md)
- [gammaLevel](corevideo/cvimagebufferattachmentkeydefinitions/gammalevel.md)
- [horizontalDisparityAdjustment](corevideo/cvimagebufferattachmentkeydefinitions/horizontaldisparityadjustment.md)
- [iccProfile](corevideo/cvimagebufferattachmentkeydefinitions/iccprofile.md)
- [leftStereoDisplayMaskRectangle](corevideo/cvimagebufferattachmentkeydefinitions/leftstereodisplaymaskrectangle.md)
- [logTransferFunction](corevideo/cvimagebufferattachmentkeydefinitions/logtransferfunction.md)
- [masteringDisplayColorVolume](corevideo/cvimagebufferattachmentkeydefinitions/masteringdisplaycolorvolume.md)
- [pixelAspectRatio](corevideo/cvimagebufferattachmentkeydefinitions/pixelaspectratio.md)
- [postDecodeProcessingFrameMetadata](corevideo/cvimagebufferattachmentkeydefinitions/postdecodeprocessingframemetadata.md)
- [postDecodeProcessingSequenceMetadata](corevideo/cvimagebufferattachmentkeydefinitions/postdecodeprocessingsequencemetadata.md)
- [regionOfInterest](corevideo/cvimagebufferattachmentkeydefinitions/regionofinterest.md)
- [rightStereoDisplayMaskRectangle](corevideo/cvimagebufferattachmentkeydefinitions/rightstereodisplaymaskrectangle.md)
- [sceneIllumination](corevideo/cvimagebufferattachmentkeydefinitions/sceneillumination.md)
- [transferFunction](corevideo/cvimagebufferattachmentkeydefinitions/transferfunction.md)
- [yCbCrMatrix](corevideo/cvimagebufferattachmentkeydefinitions/ycbcrmatrix.md)

## Relationships

### Inherits From

- [CVAttachmentKeyDefinitions](corevideo/cvattachmentkeydefinitions.md)

### Conforming Types

- [CVPixelBufferAttachmentKeyDefinitions](corevideo/cvpixelbufferattachmentkeydefinitions.md)

## See Also

### Protocols

- [CVImageBufferRepresentable](corevideo/cvimagebufferrepresentable.md)