24
User’s Guide
Document Reader Regula 70X4M.XXX
APPENDIX A
Device Calibration
A.1
The device calibration is intended for ensuring both accurate
color rendering of the object on the scanned images and software
compensation of the document lighting unevenness and symmetrical
distortions.
A.2 Calibration procedure
1)
Prepare the device for operation according to paragraph 2.2.3.
2)
Execute DR SDK command
RPRM_Command_Calibration
(see Programmer’s Guide, paragraph 6.5) in User application or
execute Test Application Readerdemo.exe menu command
“File\
Device\Calibrate…”
(see “Test Application (Readerdemo.exe)”
documentation). Operation order.
Note:
If this is the first calibration to be performed, Document Reader SDK
will automatically display request for calibration.
3)
After DR SDK dialog window is displayed
place
“Test-object Side 1” (with its white side downwards
to the glass)
on the reader object-plate up to the stop against
the left and back panels. Press “OK” button.
4)
After DR SDK dialog window is displayed
place
“Test-object Side 2”
(“chess board”) on a reader objectplate
up to the stop against the left and back panels. Press “OK” button.
In case
“Test-object Side 2”
is not included in the delivery set
(device had been purchased before DR SDK version 4.0 was released),
make it on your own.