Piranha Color Camera User’s Manual 80
DALSA 03-032-10211-01 5/9/2007
Mnemonic Syntax Parameters Description
tap’s analog gain so that 8-13% of
pixels within a tap are above the value
specified in the target value parameter.
PRNU calibration then occurs using
the peak pixel in the region of interest.
(Identical to ccp)
2 = Calculates the PRNU coefficients
using the entered target value as shown
below:
PRNU Coefficient =
Ta rg e t
(AVG Pixel Value) - (FPN+ value
sdo
The calculation is performed for all
sensor pixels but warnings only apply
to pixels in the region of interest. This
algorithm is useful for achieving
uniform output across multiple
cameras.
3 = This algorithm includes an analog
gain adjustment prior to PRNU
calibration. Analog gain is first adjusted
so that the peak pixel value in tap’s
ROI is within 97 to 99% of the
specified target value. It then calculates
the PRNU coefficients using the target
value as shown below:
PRNUCoefficient=
Targ et
(AVGPixelValue)‐(FPN +value)
sdo
i
i
i
The calculation is performed for all
sensor pixels but warnings only apply
to pixels in the region of interest. This
algorithm is useful for achieving
uniform output across multiple
cameras.
4 = This algorithm is the same as 2
with the exception that it only
calculates PRNU for the pixels within
the current Region of Interest (ROI).
The second parameter is the target
value to use in a range from 1024 to
4055 DN.
i2 = Output target.
correction set sample css m Sets the number of lines to sample
when using the gla command or
when performing FPN and PRNU
calibration where m is 1024, 2048,
or 4096.
display input LUT dil t a1 a2 Displays the range of input LUT
values, where:
t = Tap number: 0 for all. The range
is modified by the color selected.
a1 = Range start address: 0 to 1023.
a2 = Range stop address: 0 to 1023.
a1 ≤ a2
display pixel coeffs dpc x1 x2 Displays the pixel coefficients in the
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