Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1989-08-17
1991-11-26
Coles, Sr., Edward L.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
382 54, H04N 140
Patent
active
050687468
ABSTRACT:
An image processing apparatus for digitizing an analog image by dispersing the digitizing error to the surrounding areas. The characteristics or edge of the analog imnage are identified, and the error dispersing area is varied according to the result of identification, thus enabling reproduction of the image with high quality regardless of the nature of the original image.
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patent: 4878125 (1989-10-01), Katayama et al.
patent: 4926251 (1990-05-01), Sekizawa et al.
patent: 4958218 (1990-09-01), Katayama et al.
patent: 5008950 (1991-04-01), Katayama et al.
Hosokawa Hiroshi
Katayama Akihiro
Ohsawa Hidefumi
Sunohara Izuru
Yoshimoto Masahiko
Canon Kabushiki Kaisha
Coles Sr. Edward L.
Grant II Jerome
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