Image analysis – Image compression or coding – Quantization
Patent
1998-03-26
1999-12-14
Grant, II, Jerome
Image analysis
Image compression or coding
Quantization
358522, 358523, 358530, G06F 1500, H04N 146
Patent
active
060028041
ABSTRACT:
Optimally determined halftoning algorithms are applied to tone values by selecting among combinations of at least two algorithms that best address the tradeoff between output quality and rendering performance. Input tone values are scrutinized and matched with the algorithm combination that processes the associated tone values in a manner that increases performance (including data compressibility) without sacrificing output quality. The selection process is computationally simple and fast. Reliability is ensured because the combinations of halftoning algorithms are tabulated as a result of analysis of test samples of the printed output.
REFERENCES:
patent: 4413275 (1983-11-01), Horiuchi et al.
patent: 4500919 (1985-02-01), Schreiber
patent: 4680645 (1987-07-01), Dispoto et al.
patent: 4866514 (1989-09-01), Yeomans
patent: 4974171 (1990-11-01), Yeh et al.
patent: 5031050 (1991-07-01), Chan
patent: 5091734 (1992-02-01), Suzuki et al.
patent: 5131075 (1992-07-01), Wilkes et al.
patent: 5168552 (1992-12-01), Vaughn et al.
patent: 5519791 (1996-05-01), Webb
patent: 5602971 (1997-02-01), Deschuytere
patent: 5731823 (1998-03-01), Miller et al.
The Examiner's attention is also directed to the following pending applications that are assigned to the assignee of the present application: 08/884,750, filed Jun. 30, 1997; 08/759,399, filed Dec. 4, 1996; and 08/827,628, filed Apr. 9, 1997.
EPO/Patent Abstracts of Japan; Osaw a Hideshi; Pub. No. 63205238; Aug. 24, 1988; 1 page.
EPO/Patent Abstracts of Japan; Idei Katsuto; Pub. No. 59163945; Sep. 17, 1984; 1 page.
Allen W. J. et al; HP DeskWriter C Printer Driver Development;Aug. 1992 Hew lett-Packard Journal pp. 93-102.
Bhaskar Ranjit
Gondek Jay S
Hudson Kevin R.
Grant II Jerome
Hewlett--Packard Company
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