Unibrain 780 - Manual (Page 31)

Unibrain Fire-i 580/780/785/980 Operation Manual Page 25
3.7. Saturation
The saturation register at offset 814h allows the intensity of the colors to be changed in the range of 0 ~ 255.
For Saturation control inquiry and status register, follow the same definition as “BRIGHTNESS”
Value 0 Value 128 Value 255
• Operation
U’ = U * saturation/128
V’ = V * saturation/128
(U’, V’ =After applying the Saturation on the original image - U, V = Original color U and V)
• Absolute values (%) = saturation* 100/128(%)