Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1994-10-31
1996-02-20
Coles, Sr., Edward L.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358455, 358456, 358465, 382252, H04N 140
Patent
active
054934168
ABSTRACT:
A block-based error diffusion technique allows for the printing of colored images having arbitrary screen orientations. The technique improves reproducibility by only compensating for errors arising from quantization in selected "critical blocks".
REFERENCES:
patent: 4051536 (1977-09-01), Roetling
patent: 4149194 (1979-04-01), Holladay
patent: 4256401 (1981-03-01), Fujimura et al.
patent: 4339774 (1982-07-01), Temple
patent: 4625222 (1986-11-01), Bassetti et al.
patent: 4633327 (1986-12-01), Roetling
patent: 4654721 (1987-03-01), Goertzel et al.
patent: 4672463 (1987-06-01), Tomohisa et al.
patent: 4693593 (1987-09-01), Gerger
patent: 4700229 (1987-10-01), Herrmann et al.
patent: 4709250 (1987-11-01), Takeuchi
patent: 4724461 (1988-02-01), Rushing
patent: 4924322 (1990-05-01), Kurosawa et al.
patent: 4955065 (1990-09-01), Ulichney
patent: 5045952 (1991-09-01), Eschbach
patent: 5055942 (1991-10-01), Levien
patent: 5226096 (1993-07-01), Fan
patent: 5243443 (1993-09-01), Eschbach
patent: 5321525 (1994-06-01), Hains
patent: 5325211 (1994-06-01), Eschbach
Thomas. M. Holloday, "An Optimum Algorithm for Halftone Generation for Displays and Hard Copies", Proc. Society for Information Display, vol. 21, No. 2, 1980, pp. 185-192.
Floyd et al., An Adaptive Algorithm for Spatial Greyscale, Proceedings of the SID, 17/2, pp. 75-77 (1976).
Jarvis et al., A Survey of Techniques for the Display of Continuous Tone Pictures on Bilevel Displays, Computer Graphics and Image Processing, vol. 5, pp. 13-40 (1976).
Stucki, Mecca--A Multiple-Error Correction Computation Algorithm for Bi-level Image Hardcopy Reproduction, IBM Research RZ1060 (1981).
Goertzel et al., Digital Halftoning on the IBM 4250 Printer, IBM J Res Develop vol. 31, No. 1, pp. 2-15, Jan. 1987.
Holladay, An Optimum Algorithm for Halftone Generation for Displays and Hard Copies, Proceedings of the SID, vol. 21/2, 1980, pp. 185-192.
Roetling, Halftone Method with Edge Enhancement and Moire Suppression, J. Opt. Soc. Am., vol. 66, No. 10, Oct. 1976, pp. 985-989.
Coles Sr. Edward L.
Stoll Thomas L.
Xerox Corporation
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