E2v UNiiQA+ CL Monochrome User Manual - page 29
CL Monochrome
UM UNIIQA+ Monochrome CL
– RevA – 12/2014
7.7.3 Manual Flat Field Correction
The FFC Coefficients can also be processed outside of the Camera or changed manually by accessing directly
their values in the Camera : This is the “Manual” FFC.
In CommCam, the User can access to a specific interface by clicking on “click for extended control” in both
“Manual FFC calibration” and “Manual FPN calibration sections” :
This will allow the user to upload/download out/in the Camera the FFC coefficients in/from a binary or text file
that can be processed externally.
It is recommended to setup the baud rate at the maximum value possible (230400 for example) otherwise the
transfer can take a long time.
Set FFC Address memory access
:
Set the memory address for the direct access to both PRNU/ FPN
coefficients for reading or writing. After each read or write action, this address in incremented of 128
Write function (ASCII):” w ffcga
of the PRNU/FPN Coefficients.
Start address for Offsets (FPN) : 0x12400
Start address for Gains (PRNU) : 0x13400
.
FPN coefficients modification
:
Direct access to the FPN coefficients for reading or writing.
The FPN coefficients are read packets of x128 coefficients :
Read function (ASCII): “r ffco” : Read 128 consecutive FPN user coefficients starting from address set
by the command fcca. Returned value is in hexadecimal, without space between values (2 Bytes per
coefficient).
Write function (ASCII):” w ffco
by the command fcca.
the values (2 Bytes per coefficient).
PRNU coefficients modification
:
Direct access to the PRNU coefficients for reading or writing.
The PRNU coefficients are read packets of x128 coefficients :
Read function (ASCII): “r ffcg ” : Read 128 consecutive PRNU user coefficients starting from address
set by the command fcca. Returned value is in hexadecimal, without space between values (2 Bytes
per coefficient).
Write function (ASCII):” w ffcg
address set by the command fcca.
space between the values (2 Bytes per coefficient).
write command.