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READING SECTION
• GENESIS (UHQ)
(GEneration of NEw Superior Imaging System (Ultra High Quality))
GENESIS (UHQ) is an image processing method that achieves high-qual-
ity images for text documents by performing edge emphasis and notch pro-
cessing, and high-quality images for documents containing both text and
photos by performing error diffusion processing.
• Edge emphasis
Normally, the contours of the image read by the contact sensor are blurred
or collapsed compared with the contours of the original image. For this
reason, the edge emphasis section compensates for blurring or collapsing
of the contours so that the read image is reproduced more faithfully to the
original image.
• Notch processing
Notch processing is for processing notches in binary data that is processed
by simple binarization. By notch processing, unwanted notches (jagged
sections) are automatically compensated for based upon the information
relating to the focus
3–16
pixel
and peripheral pixels.
Before notch processing
Fig. 3-19 Notch Processing
After notch processing
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