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how to linearize light during a dayt whit abs_exposure camera parameter

Hi,

On my camera I can use only gain and abs_exposure parameter (V4Lc linux ubuntu) ... my problem is change abs_exposure parameter duringa a day from 160 to 600 automatically (These values ​​have been tested throughout the day and in all conditions ... ranging from 160 min to 600 max I can get a great object-detenction). The values ​​must change with the different light of the day ... I was wondering if is possible to use the camera to be able to do this and how ...

There are many highlights that a sensor may not see .... but perhaps by calculating the entire amount of the white image and use it as a value might be an idea ....

Regards gfx