Television – Image signal processing circuitry specific to television – Hue control
Patent
1993-07-20
1995-01-10
Groody, James J.
Television
Image signal processing circuitry specific to television
Hue control
348649, H04N 964
Patent
active
053811852
ABSTRACT:
In a method for correcting flesh color including the steps of generating an I-axis component and Q-axis component of a color-difference signal from R-Y, G-Y, and B-Y color-difference signals; generating a flesh color correction signal on the basis of the generated I-axis and Q-axis components; and correcting the B-Y color-difference signal by the generated flesh color correction signal, the R-Y color-difference signal level is detected, and correction of the B-Y color-difference signal by the flesh color correction signal is inhibited, when the detected R-Y color-difference signal level is higher than a predetermined value.
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Sanyo Semiconductor Technical Data, "LA7698 Block Diagram," Issued from Semiconductor Division of Sanyo Electric Co., Oct. 1990.
Data Book of Hitachi ICS for consumer products, video IC Edition, "HA11511CNT", published by Semiconductor Division of Hitachi, Ltd., Sep. 1987 (First Edition), Sep. 1991 (Third Edition).
Kamiya Masanori
Ohki Hideaki
Burgess Glenton B.
Groody James J.
Hitachi , Ltd.
Hitachi Video and Information
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