colour.models.log_decoding_ACESproxy¶
- colour.models.log_decoding_ACESproxy(ACESproxy, bit_depth=10, in_int=False, constants={10: {'CV_max': 940, 'CV_min': 64, 'mid_CV_offset': 425, 'mid_log_offset': 2.5, 'steps_per_stop': 50}, 12: {'CV_max': 3760, 'CV_min': 256, 'mid_CV_offset': 1700, 'mid_log_offset': 2.5, 'steps_per_stop': 200}})[source]¶
Defines the ACESproxy colourspace log decoding curve / electro-optical transfer function.
- Parameters
ACESproxy (numeric or array_like) – ACESproxy non-linear value.
bit_depth (int, optional) – {10, 12}, ACESproxy bit depth.
in_int (bool, optional) – Whether to treat the input value as integer code value or float equivalent of a code value at a given bit depth.
constants (Structure, optional) – ACESproxy constants.
- Returns
lin_AP1 value.
- Return type
numeric or ndarray
Notes
Domain *
Scale - Reference
Scale - 1
ACESproxy
[0, 1]
[0, 1]
Range *
Scale - Reference
Scale - 1
lin_AP1
[0, 1]
[0, 1]
* This definition has an input integer switch, thus the domain-range scale information is only given for the floating point mode.
References
[], [], [], []
Examples
>>> log_decoding_ACESproxy(0.416422287390029) 0.1... >>> log_decoding_ACESproxy(426, in_int=True) 0.1...