videolib.standards.Standard

class Standard(name, white_xy, red_xy, green_xy, blue_xy, linear_range, oetf, eotf, bitdepth, dtype)

Bases: object

Class to define an image/video standard.

Methods

Attributes

primaries	Color primaries of the standard
range	Non-linear encoded range
name	Name of the standard
white_xy	White point in CIE xy format
red_xy	Red primary in CIE xy format
green_xy	Green primary in CIE xy format
blue_xy	Blue primary in CIE xy format
linear_range	Linear light value range
oetf	Opto-Electrical (or as appropriate, inverse Electro-Optical) Transfer Function
eotf	Electro-Optical Transfer Function
bitdepth	Bitdepth of the standard
dtype	Data-type of pixel values being read from files

bitdepth: int

Bitdepth of the standard

blue_xy: Tuple[float, float]

Blue primary in CIE xy format

dtype: Union[str, dtype]

Data-type of pixel values being read from files

eotf: Callable

Electro-Optical Transfer Function

green_xy: Tuple[float, float]

Green primary in CIE xy format

linear_range: float

Linear light value range

name: str

Name of the standard

oetf: Callable

Opto-Electrical (or as appropriate, inverse Electro-Optical) Transfer Function

property primaries: Dict[str, Tuple[float, float]]

Color primaries of the standard

Returns:

Dictionary of RGB primaries and white point of the standard.

Return type:

Dict[str, Tuple[float, float]]

property range: int

Non-linear encoded range

Returns:

Range of non-linear encoded values. Equal to \(2^{\text{bitdepth}}-1\) if integer dtype, else 1.0.

Return type:

int

red_xy: Tuple[float, float]

Red primary in CIE xy format

white_xy: Tuple[float, float]

White point in CIE xy format