Video signal with contour adjustment processing apparatus

Details Video signal with contour adjustment processing apparatus Video signal with contour adjustment processing apparatus

1996-04-18

1999-05-18

Peng, John K.

Television

Camera, system and detail

Combined image signal generator and general image signal...

348 26, 348 29, 348630, 348649, H04N5/208

Patent

active

059055324

ABSTRACT:
An apparatus for processing a video signal by adjusting the contour of a picture. The apparatus includes an arrangement from a delay circuit 2 to a subtraction circuit 5 for extracting a contour of the picture and generating at least a signal opposite in polarity to a contour enhancement signal enhancing the extracted contour. The signal polarity is continuously varied from a maximum value of a positive polarity to a maximum value of an opposite polarity by a variable resistor RV2, an output of which is added to the input video signal by an addition circuit 6. With the processing apparatus, a picture can not only be raised in resolution as felt by the viewer, that is can be enhanced in contour, but also can be lowered in resolution as felt by the user, that is can be softened in contour. A corresponding method for processing a video signal by adjusting the contour of a picture and a video camera having the apparatus for processing the video signal in this manner are also disclosed.

REFERENCES:
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patent: 4506293 (1985-03-01), Hurst, Jr.
patent: 5103299 (1992-04-01), Asaida
patent: 5446502 (1995-08-01), Lebowsky
patent: 5574513 (1996-11-01), Topper

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