Andrey,

The experiment was:
I took 20 images at different exposure time.
Then I chose the same pixel in every image and converted it to HSV colorspace. 
Saturation refers the S value of the HSV color model, color saturation.
Then I plotted the color saturation against the brightness value V of the HSV 
color model.
The plott shows a gauss curve i.e. low saturation for long and short exposure 
times and the maximum saturation is medium exposure time.

Unfortuniately I cant add the graph at the moment from my mobile phone. 

Is that behaviour of the color saturation expected?

Andreas

Von Samsung Mobile gesendet

 Andrey Filippov <[email protected]> hat geschrieben: 

Andreas,

Can you provide more details about your experiment and show your graphs? What 
are you calling "saturation" in this context?

Andrey


On Mon, Nov 14, 2011 at 11:56 PM, DI Andreas Bean <[email protected]> wrote:
Andrey,

Measuring the saturation (for a single pixel) for different exposure times and 
plotting it against the value shows an almost perfect gauss curve.

Is this based on physics or sensor properties?



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