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# Display Stream YCbCr to RGB conversion Matrix Options

These strings are used to specify a matrix for the `CGDisplayStream/yCbCrMatrix` option.

## Topics

### Constants

[`yCbCrMatrix_ITU_R_709_2`](/documentation/CoreGraphics/CGDisplayStream/yCbCrMatrix_ITU_R_709_2)

Specifies the YCbCr to RGB conversion matrix for HDTV digital television (ITU R 709) images.

[`yCbCrMatrix_ITU_R_601_4`](/documentation/CoreGraphics/CGDisplayStream/yCbCrMatrix_ITU_R_601_4)

Specifies the YCbCr to RGB conversion matrix for standard digital television (ITU R 601) images.

[`yCbCrMatrix_SMPTE_240M_1995`](/documentation/CoreGraphics/CGDisplayStream/yCbCrMatrix_SMPTE_240M_1995)

Specifies the YCbCR to RGB conversion matrix for 1920 x 1135 HDTV (SMPTE 240M 1995).


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