[Alt-photo] Re: sensor and curve

[clay harmon's personal website email account]

It is my understanding that the linear response of digital sensors is the reason that a gamma curve function is applied to the digital output.  The gamma function 'maps'  the linear digital gradation to a gamma curve, which is something the human eye and brain is accustomed to perceiving.

-Clay 
On Apr 16, 2013, at 12:43 PM, jusdado <jmjusdado at gmail.com> wrote:

> 
> Greetings.
> We know how to design a characteristic curve of sensitive material (film or paper), base + veil, heel and shoulder, line, depending on the values ​​of light exposure. But someone could draw or define the "characteristic curve" of a digital sensor?. The digital sensor has a linear response to increases in exposure. There would be "heel", not "shoulder", just straight?. Thank you.
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