Digital Gain And Background Subtract - Dalsa PC-30-02K80-R Manual

Piranha Color Camera User's Manual
Enabling and Disabling Pixel Coefficients
Purpose:
Syntax:
Syntax Elements:
Example:

3.16 Digital Gain and Background Subtract

Setting Digital Offset
Purpose:
Syntax:
Syntax Elements:
Notes:
Related Commands:
Example:
Subtracting Background
Purpose:
Syntax:
Syntax Elements:
DALSA
Enables and disables FPN and PRNU coefficients.
epc i i
i
FPN coefficients.
0 = FPN coefficients disabled
1 = FPN coefficients enabled
i
PRNU coefficients.
0 = PRNU coefficients disabled
1 = PRNU coefficients enabled
epc 0 1
Sets the digital offset. Digital offset is set to zero when you
perform FPN correction (ccf command). If you are unable to
perform FPN correction, you can partially remove FPN by
adjusting the digital offset.
sdo t i
t
Tap selection. Allowable range is 1 to 4 depending on color
selected, or 0 for all taps.
i
Subtracted offset value in a range from 0 to 4095.
When subtracting a digital value from the digital video signal, the
output can no longer reach its maximum unless you apply digital
gain using the ssg command. See the following section for
details on the ssg command.
ssg
sdo 0 100
Use the background subtract command after performing a flat
field correction in order to improve your image in a low contrast
scene. This is useful for systems that process 8 bit data but want
to take advantage of the camera's 12 bit digital processing chain.
You should try to make your darkest pixel in the scene equal to
zero.
ssb t i
t
Tap selection. Allowable range is 1 to 4 depending on color
selected, or 0 for all taps.
i
Subtracted value in a range in DN from 0 to 4095.
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