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5.2.
Digital clamp
You can adjust between +255 and 0 steps for 12-bit
output images.
With the value of 1023 (default value) at 0 step, you can
adjust to +255 step by entering 0.
5.3.
Digital gain
Configure this setting with DGAIN. Set the variable
between x0 (black) to x15 and set the factor between 0
and 15, and Yout = Yin x factor.
Multiply by one when the factor is equal to 1.
Use this, for example, when the image is dark with
regards to AFE gain only.
5.4.
Digital pedestal
You can adjust between -255 and +255 steps for 12-bit
output images.
With the value of 1023 (default value) at 0 step, you can
adjust to -255 step by entering 0, and to +255 step by
entering 2047.
This setting raises the whole level.
Y
+255 step
Default value
-255 step
Input value
Digital clamp addition
amount
Digital gain factor
Digital pedestal addition
amount
Output value
Note
The digital gain changes the whole level. Therefore, if it
is used when the previous step of the digital clamp has
been changed from the default value (1023), the change
in the black level will be (digital gain factor) × (digital
clamp additional value).
If the digital clamp setting has been changed, use the
digital pedestal to adjust the black level.
26
5. DSP Operation
(Movement when
using 12 bits.)
Yin (during 12-bit output)
A (0 to +255)
K (x0 to x15)
B (-255 to +255 step)
Yout
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