Computer graphics processing and selective visual display system – Computer graphics processing – Character generating
Patent
1993-01-27
1998-06-23
Fetting, Anton
Computer graphics processing and selective visual display system
Computer graphics processing
Character generating
G06T 1140
Patent
active
057710481
ABSTRACT:
A font data output method that applies bandwidth limitation to binary font data using a two-dimensional low-pass filter, and applies gain of one or more to a multilevel-value data group obtained by reduction at a predetermined ratio according to the distribution of values in the multilevel-value data group to generate the gradated font data. Using this method, the loss of line and character density in the font data due to a high reduction ratio can be prevented.
REFERENCES:
patent: 4720705 (1988-01-01), Gupta et al.
patent: 4851825 (1989-07-01), Naiman
patent: 4885576 (1989-12-01), Pennebaker et al.
patent: 4910603 (1990-03-01), Hirahara et al.
patent: 5029107 (1991-07-01), Lee
patent: 5101443 (1992-03-01), Behrmann-Poitiers
patent: 5109282 (1992-04-01), Peli
patent: 5148289 (1992-09-01), Nishiyama et al.
patent: 5159644 (1992-10-01), Martin et al.
patent: 5239383 (1993-08-01), Ikeda et al.
patent: 5243668 (1993-09-01), Kitamura et al.
patent: 5245444 (1993-09-01), Hashimoto
patent: 5257116 (1993-10-01), Suzuki
patent: 5333212 (1994-07-01), Ligtenberg
patent: 5339365 (1994-08-01), Kawai et al.
Foley et al., Computer Graphics: Prinicples and Practice, 1990, p. 965-979, 1990.
Foley et al., Computer Graphics: Principle and Practice, 1990, pp. 126-141, 564-567, 617-645.
Ju et al., Clobal Study on Data Compression Techniques for Digital Chinese Character Patterns, IEEE Proc. Part E Computers & Digital Techniques, Jan. 1992, pp. 1-8.
Schilling et al., A New Simple and Efficient Antialiasing with Subpixel Masks, Computer Graphics, Jul. 1991, pp. 133-141.
Wu, An Effiecient Antialiasing Technique, Computer Graphics, Jul. 1991, pp. 143-152.
Kirk et al., Unbiased Sampling Techniques for Image Synthesis, Computer Graphics, Jul. 1991, pp. 153-156.
Nankou Takahiko
Yamashita Haruo
Fetting Anton
Matsushita Electric - Industrial Co., Ltd.
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