colour.offset_YCbCr¶

colour.offset_YCbCr(bits: int = 8, is_legal: bool = False, is_int: bool = False) → numpy.ndarray[source]¶

Compute the R’G’B’ to Y’CbCr offsets for given bit depth, range legality and representation.

The related R’G’B’ to Y’CbCr matrix can be computed with the colour.matrix_YCbCr() definition.

Parameters

bits (int) – Bit depth of the Y’CbCr colour encoding ranges array.
is_legal (bool) – Whether the Y’CbCr colour encoding ranges array is legal.
is_int (bool) – Whether the Y’CbCr colour encoding ranges array represents integer code values.

Returns

Y’CbCr matrix.

Return type

numpy.ndarray

Examples

>>> offset_YCbCr()
array([ 0.,  0.,  0.])
>>> offset_YCbCr(is_legal=True)  
array([ 0.0627451...,  0.5019607...,  0.5019607...])

colour.matrix_YCbCr

colour.RGB_to_YCbCr