---
title: kCVImageBufferYCbCrMatrixKey
framework: corevideo
role: symbol
role_heading: Global Variable
path: corevideo/kcvimagebufferycbcrmatrixkey
---

# kCVImageBufferYCbCrMatrixKey

A key to the YCbCr to RGB color conversion matrix for the image buffer.

## Declaration

```swift
let kCVImageBufferYCbCrMatrixKey: CFString
```

## Discussion

Discussion The color matrix value is of type CFString. It indicates the type of conversion matrix Core Video uses when it converts image buffer data from the YCbCr color space to the RGB color space. See Image Buffer YCbCr Matrix Constants for more information.

## See Also

### Constants

- [kCVImageBufferCGColorSpaceKey](corevideo/kcvimagebuffercgcolorspacekey.md)
- [kCVImageBufferCleanApertureKey](corevideo/kcvimagebuffercleanaperturekey.md)
- [kCVImageBufferPreferredCleanApertureKey](corevideo/kcvimagebufferpreferredcleanaperturekey.md)
- [kCVImageBufferFieldCountKey](corevideo/kcvimagebufferfieldcountkey.md)
- [kCVImageBufferFieldDetailKey](corevideo/kcvimagebufferfielddetailkey.md)
- [kCVImageBufferPixelAspectRatioKey](corevideo/kcvimagebufferpixelaspectratiokey.md)
- [kCVImageBufferDisplayDimensionsKey](corevideo/kcvimagebufferdisplaydimensionskey.md)
- [kCVImageBufferGammaLevelKey](corevideo/kcvimagebuffergammalevelkey.md)
- [kCVImageBufferICCProfileKey](corevideo/kcvimagebuffericcprofilekey.md)
- [kCVImageBufferColorPrimariesKey](corevideo/kcvimagebuffercolorprimarieskey.md)
- [kCVImageBufferTransferFunctionKey](corevideo/kcvimagebuffertransferfunctionkey.md)
- [kCVImageBufferChromaLocationTopFieldKey](corevideo/kcvimagebufferchromalocationtopfieldkey.md)
- [kCVImageBufferChromaLocationBottomFieldKey](corevideo/kcvimagebufferchromalocationbottomfieldkey.md)
- [kCVImageBufferChromaSubsamplingKey](corevideo/kcvimagebufferchromasubsamplingkey.md)
- [kCVImageBufferAlphaChannelIsOpaque](corevideo/kcvimagebufferalphachannelisopaque.md)