Computer graphics processing and selective visual display system – Computer graphics processing – Graph generating
Patent
1994-09-22
2000-08-01
Zimmerman, Mark K.
Computer graphics processing and selective visual display system
Computer graphics processing
Graph generating
G06T 500
Patent
active
060973986
ABSTRACT:
An apparatus which converts R, G, B color signals into Y, Cr, Cb signals and reconverts them into R, G, B signals, compensates converted Y signals in order to confine each component of R, G, B color signals to be reconverted in a dynamic range allowable for them.
It is not necessary to provide time consuming processes for checking and compensating reconverted R, G, B color signals and total time required for reconversion is reduced.
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Milton S. Kiver et al., "Television Electronics", Theory and Servicing, 77 (8th ed. 1983).
R. W. McColl and G. R. Martin, "Compression of colour image data . . . clustering techniques", Electronics & Communication Engineering Journal, Mar./Apr. 1989, pp. 93-100.
Patent Abstracts of Japan, vol. 9, No. 234 (E-344), Sep. 20, 1985 (corresponding to JPA 60-087595).
Kulkarni et al., "On Computing . . . Digital Video", Tencon '89: Information Technologies for the 90's--E2C2; Energy, Electronics, Computers, Communications, Nov. 22, 1989, pp. 678-681.
Patent Abstracts of Japan, vol. 12, No. 54 (E-583), Feb. 18, 1988 (corresponding to JPA 62-200889).
NEC Corporation
Zimmerman Mark K.
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