Teledyne Falcon4 86M User Manual page 61

PRNU: Auto PRNUautoColorGain
Color Gain
Gain Calibration flatfieldColorTargetSelector
Target Selector
TargetRed
TargetGreen
TargetBlue
Gain Calibration flatfieldCalibrationTarget
Target
Calibration flatfieldCalibrationSampleSize
Sample Size
Average 256 Avg256
images
Average 128
Avg128
images
Average 64 Avg64
images
Average 32 Avg32
images
Average 16 Avg16
images
Falcon4 86M Cameras
The calculation equations are the same as
above, however the target value is
determined by the camera over the Area of
Interest controlled by the entries of the
AutoBrightnessXXX parameters.
The target value is
Targetx = Averagex*1.2
Where x is the specific color/ or mono.
In this mode the white balance gains are
stored with the PRNU coefficients and are
set as WBgain most responsive color =1,
WBgainColor1/2= MostresponsiveColor /
(Color1/2Avg)
Selects the color PRNU target that the
Gain Calibration Target is applied to. (RW)
Mono cameras do not have this selector.
Sets the target pixel value for the gain
(PRNU) calibration for the respective color
when in calibration mode, method 1. (RW)
It is specified as a percentage of the
output range (for example, 2048 DN for 12
bits = 50%).
Range is 0 to 100 %, as float.
All three colors need to be entered for the
color camera and a single value entered
for the monochrome camera. It is
recommended the
flatfieldCalibrationTarget =
colorAverage*1.2.
PRNU calculation method 2 uses image
statistics to calculate the target values and
flatfieldCalibrationTarget is not used.
For Color Cameras: method 1 sets the
white balance gain factors to unity for the
PRNU coefficient set, while Method 2
stores the white balance gain factors
needed to achieve white balance.
The number of images to average to
perform the calibration.(RW)
Average 256 images. Recommended for
PRNU calculation.
Average 128 images. Recommended for
FPN calculation.
Average 64 images.
Average 32 images.
Average 16 images.
Read-Write when in Calibration Mode.
DFNC
Expert
DFNC
Expert
DFNC
Beginner
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