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COPYRIGHT © 2006 CANON ELECTRONICS INC. CANON DR-1210C FIRST EDITION FEB. 2006
2-13
CHAPTER 2 FUNCTION & OPERATION
2. Image Processing
The figure below shows a block diagram
of image processing executed by this ma-
chine.
Reading unit
[This machine]
Analog processor
•
Offset adjustment
•
Gain adjustment
•
A/D conversion
Controller
•
CCLF lighting
control
•
16 bits to 8 bits
[Computer]
Shading correction
1-dimensional gamma correction
Color correction
(3-dimension)
Color
Edge emphasis
Binarizing
Binary
Grayscale
Color
Grayscale
Data after shading correction
USB I/F
Data after image processing
Other processes
•
Size detection
•
Black border removal
•
Punch hole removal
•
Others
Main PCB
Inverter
CCD
PCB
C
C
F
L
Resolution conversion
SDRAM (32MB)
Figure 2-402