Television – Image signal processing circuitry specific to television – Hue control
Patent
1992-12-31
1996-01-30
Kostak, Victor R.
Television
Image signal processing circuitry specific to television
Hue control
348652, H04N 968
Patent
active
054884292
ABSTRACT:
A flesh-tone area is detected based on color-difference and luminance signals constituting video signals, and luminance correction, color correction, and aperture correction are performed only on the flesh-tone area or a human face area identified in the flesh-tone area. The setting of a focus area or the setting of a photometric area for iris control, automatic gain control, automatic shutter control, etc., in a video camera, is performed with respect to the flesh-tone area or the human face area. Furthermore, based on the color-difference and luminance signals constituting the video signals, a background area is detected, and the video signals are divided into components representing a background area and components representing an object area. An image signal of a desired hue or a still image is superimposed on the detected background area, or special processing is performed on the video signals representing the object area other than the detected background area.
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Kojima Kazuaki
Kuno Tetsuya
Sugiura Hiroaki
Yamada Takeshi
Kostak Victor R.
Miller John W.
Mitsubishi Denki & Kabushiki Kaisha
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