>>         What I *meant* to say was the the per-channel transfer function
>> from input to output is a function of WB and colorspace.  Once the output
>> has to be truncated to 12-bits, those parameters now affect the output
>> dynamic range.
>
> However if the linear data has been subjected to some non-linear
> compression (as per modification of the gamma transfer curve around
> the noise floor and slightly before saturation) then the 12bits could
> potentially represent the equivalent of 16 bits of linear data :-)
>
        ... which would be rather nice.  Much better to disperse 
quantization throughout the (logarithmically-perceived) dynamic range.

-Cory

-- 

*************************************************************************
* Cory Papenfuss, Ph.D., PPSEL-IA                                       *
* Electrical Engineering                                                *
* Virginia Polytechnic Institute and State University                   *
*************************************************************************


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