I am trying to use ACE (Adaptive Contrast Enhancement) feature of ADV7182 by setting (enabling) register 0x80, but looks this action doesn't make any change on output video. does anybody is avaialble to help on this issue? Thanks
It does work, Thank you.
First of are you sure you are in the correct I2C map? The ACE controls on the ADV7182 are in User Sub Map 2.
To access User Sub Map 2 you must write 0x40 to register 0x0E.
Then you can access the ACE controls (e.g. by writing to register 0x80).
To re-enter the main User Map you must write 0x00 to register 0x0E.
ACE works by brightens up dark areas of the image while not saturating bright areas of the image.
If you have an image with a consistent brightness level, ACE will have no affect on the image.
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