Shading Correction - Gestetner G060 Service Manual

6.2.3 IPU BLOCK DIAGRAM
S B U
•

Shading Correction

•
Picture Elemnet Correction
•
Scanner γ Correction
•
Filter
•
ASIC1
A D S
• Image Separation
ASIC3
IPU
Shading Correction
Auto shading compensates for the possible differences in the amount of light at the
edge and center of a scanned image caused by the scanner lens, or variations
among pixels of the CCD.
SM
•
Color Correction
•
Main Scan Magnification
•
Printer γ Correction
•
Error Diffusion
ASIC2
6-9
IMAGE PROCESSING
I/F
Controller B C U
G570D902.WMF
G570