User`s manual

Linea 2K, 4K, 8K and 16K Camera User's Manual PRELIMINARY 41
Teledyne DALSA 03-032-20206-01
algorithm if the calibration target is not uniform white or it is
not possible to defocus the image. Because of the low pass filter
this algorithm is not able to correct pixel-to-pixel variations and
so it is preferable to use the ―Basic‖ algorithm if possible.
flatfieldCalibrationTarget
1. After calibration all pixels will be scaled to output this level
2. Range depends on pixel format:
 8 bit: 0 to 255 DN
 12 bit: 0 to 4095 DN
flatfieldCalibrationSampleSize
1. Number of lines to average when calibrating
2. 2048 or 4096
flatfieldCalibrationROIOffsetX
1. Together with ―flatfieldCalibrationROIWidth‖ specifies the
range of pixels to be calibrated. Pixel coefficients outside this
range are not changed. It is possible to calibrate different
regions sequentially.
flatfieldCalibrationROIWidth
flatfieldCalibrationFPN
1. Save average line (of ―flatfieldCalibrationSampleSize‖ rows).
This is the first user correction applied – it is subtracted from
each line.
2. This feature may not be of use to many users as the camera
already subtracts true ―dark current‖, but it may be useful for
some to provide a per pixel offset correction.
3. Range 0 to 511 DN, 12 bit
4. Default value is 0 DN for each pixel
flatfieldCalibrationPRNU
1. Use ―flatfieldCorrectionAlgorithm‖ to calculate the per pixel
gain to achieve the specified target output.
2. Range 0 to 15.9998x
3. Default 1x