E2v ELIIXA+ 16K CXP COLOR User Manual - page 43
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ANUAL
ELIIXA+
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CXP
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7.7.1 Automatic Calibration
Some Warnings can be issued from the PRNU/FPN Calibration Process as “pixel Overflow” of
“Pixel Underflow” because some pixels have been detected as too high or too low in the
source image to be corrected efficiently.
The Calculation result will be proposed anyway as it’s just a warning message.
The Status Register is the changed and displayed in CommCam “Status” section :
Register status is detailed chap §6.3.3.
7.7.2 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.
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.
7.7.3 Save & Restore FFC
The new-processed FFC values can be saved or restored in/from 4 x User banks.
Both Gains and Offsets in the same time but also the FFC Adjust User target and associated gain.
These functions are available in the Flat Field correction/Save & Restore FFC section :
Feature
CXP @
R/W
Size
in
bytes
Description
RestoreFFCFromBank
0x08C10
RW
4
Restore current FFC (including FPN and FFCGain) from FFC
bank number
SetSelector
1,2,3,4: User Bank
SaveFFCToBank
0x08C14
RW
4
Save current FFC (including FPN and FFCGain) to FFC bank
number
SetSelector
1,2,3,4: User Bank
FFCSetSelector
Xml
FFC bank selector
FFC User Bank Usage
At the power up :
- Last User Bank used is loaded in RAM
Reset a User bank :
- Reset the RAM (FPN/PRNU individually)
- Save in the bank to reset
Ram Memory
Save
Load
Reset FPN
Reset PRNU
User1
User2
User3
User4
User banks