【ADV7280A】About Contrast

Hi,

I am evaluating the ADV7280A.
I have a question, please let me know.

When I was checking the image quality with the color bar,
The behavior when the contrast value is changed is different from the behavior when the contrast value is changed with an IC (our conventional model) or image software with the same specifications as the ADV7280A.


Generally, we recognize that the behavior of conventional models and image software is correct.
I'm using Address: 0x08, Resister Name Contrast, CON [7: 0] for contrast adjustment.
Is there any other register that should be set for general contrast operation?
Or do I have to use another register?

Best Regards,

Naohisa