Contents

init(Yp:Cr_R:Cr_G:Cb_G:Cb_B:)

Creates a 3 x 3 matrix for converting Y’CbCr signals to RGB.

Declaration

init(Yp: Float, Cr_R: Float, Cr_G: Float, Cb_G: Float, Cb_B: Float)

Parameters

Yp:
The Yp in the conversion matrix.
Cr_R:
The Cr_R in the conversion matrix.
Cr_G:
The Cr_G in the conversion matrix.
Cb_G:
The Cb_G in the conversion matrix.
Cb_B:
The Cb_B in the conversion matrix.

Return Value

A 3 x 3 matrix for converting Y’CbCr signals to RGB.

Discussion

The vImage library uses this matrix to convert from YpCbCr to RGB using the following multiplication:

                    | R |   | Yp    0     Cr_R |   | Y' |
                    | G | = | Yp   Cb_G   Cr_G | * | Cb |
                    | B |   | Yp   Cb_B     0  |   | Cr |

See Also

Creating a conversion matrix

init()