Digital Image Processing - Canon GP200 Service Manual
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- Online manual (877 pages) ,
- Service manual (458 pages)
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C. Digital Image Processing
1. Outline
The digital image processing block serves to process image signals from various functions boards. See
Figure 3-304 for a block diagram of various image processing functions:
Analog
processor
PCB
A
Synthesis
OCRE / IP Board
COPYRIGHT © 1996 CANON INC.
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Total processing
. Reproduction ratio
. Slant
Shading
. Mirror image
correction
. Repeat
. Folding
Area signal
generation
Density
processing
Figure 3-304
CANON GP215/200 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
3. OPERATIONS AND TIMING
. Negative/
. Edge emphasis
positive reversal
. Framing
. Smoothing
. Blanking
Image processor PCB
Binary
processing
D/A
conversion
A
Laser driver
PCB
3–33
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