colour.models.log_decoding_SLog2¶

colour.models.log_decoding_SLog2(y, bit_depth=10, in_legal=True, out_reflection=True)[source]¶

Defines the Sony S-Log2 log decoding curve / electro-optical transfer function.

Parameters:	y (numeric or array_like) – Non-linear Sony S-Log2 data \(y\). bit_depth (int, optional) – Bit depth used for conversion. in_legal (bool, optional) – Whether the non-linear Sony S-Log2 data \(y\) is encoded in legal range. out_reflection (bool, optional) – Whether the light level \(x\) to a camera is reflection.
Returns:	Reflection or \(IRE / 100\) input light level \(x\) to a camera.
Return type:	numeric or ndarray

References

[SonyCorporation12]

Examples

>>> log_decoding_SLog2(0.339532524633774)  
0.1...
>>> log_decoding_SLog2(0.323449512215013, in_legal=False)
... 
0.1...
>>> log_decoding_SLog2(0.326286538946799, out_reflection=False)
... 
0.1...