colour.models.rgb.transfer_functions.panasonic_vlog Module¶
Panasonic V-Log Log Encoding¶
Defines the Panasonic V-Log log encoding:
See also
References
[1] | Panasonic. (2014). VARICAM V-Log/V-Gamut. Retrieved from http://pro-av.panasonic.net/en/varicam/common/pdf/VARICAM_V-Log_V-Gamut.pdf |
-
colour.models.rgb.transfer_functions.panasonic_vlog.
VLOG_CONSTANTS
= {'c': 0.241514, 'b': 0.00873, 'd': 0.598206, 'cut2': 0.181, 'cut1': 0.01}¶ Panasonic V-Log colourspace constants.
VLOG_CONSTANTS : Structure
-
colour.models.rgb.transfer_functions.panasonic_vlog.
log_encoding_VLog
(L_in)[source]¶ Defines the Panasonic V-Log log encoding curve / opto-electronic transfer function.
Parameters: L_in (numeric or array_like) – Linear reflection data :math`L_{in}`. Returns: Non-linear data \(V_{out}\). Return type: numeric or ndarray Examples
>>> log_encoding_VLog(0.18) 0.4233114...
-
colour.models.rgb.transfer_functions.panasonic_vlog.
log_decoding_VLog
(V_out)[source]¶ Defines the Panasonic V-Log log decoding curve / electro-optical transfer function.
Parameters: V_out (numeric or array_like) – Non-linear data \(V_{out}\). Returns: Linear reflection data :math`L_{in}`. Return type: numeric or ndarray Examples
>>> log_decoding_VLog(0.423311448760136) 0.1799999...