Service manual

COPYRIGHT © 1999 CANON INC. CANON GP160 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 4 IMAGE PROCESSING SYSTEM
4-4
III.DIGITAL IMAGE PROCESSING
A. Overview
The digital image processing assembly processes the image signals sent from the
Analog processor PCB.
The following block figure shows the contents of the image processing.
Figure 4-301
Analog
processor
PCB
Shading
correction
Magnifi-
cation ratio
processing
• Edge
emphasis
• Smoothing
Density
processing
Binarization
DC
controller
PCB
Image processor PCB
Logarithmic
correction
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