2-12
COPYRIGHT © 2005 CANON ELECTRONICS INC. CANON DR-2580C FIRST EDITION APR. 2005
CHAPTER 2 FUNCTION & OPERATION
2. Image Processing Control
Figure 2-402 shows the block diagram of
the image processing in the main body.
CIS PCB
front
"This machine"
CIS PCB
back
Analog processor
· Offset
adjustment
· Gain
adjustment
·
A/D conversion
Data controller
· LED light control
·
Resolution
conversion
· 12bit
→
8bit
"Computer"
"Flatbed"
Option
Shading correction
1-dimensional gamma correction
Binary
Color
Edge emphasis
Binarizing
Grayscale
Data after shading correction
USB interface
Data after image processing
Other processing
·
Size detection
·
Black border
removal
·
Binder hole
removal
· Others
Control PCB
Color
correction
(3-dimensions)
Figure 2-402
Содержание imageFORMULA DR-2580C
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