Color picture image processing system for separating color pictu

Details Color picture image processing system for separating color pictu Color picture image processing system for separating color pictu

1988-05-26

1990-03-13

Shepperd, John W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 1104

Patent

active

049086987

ABSTRACT:
A color picture image processing system with edge detection for separating a color picture image into pixel data, transmitting vector signals constituting chrominance components of the pixel data in a corresponding relationship with a transmission of scalar signals corresponding to luminance components of the pixel data, and reproducing the color picture image from the transmitted vector signals and scalar signals. The system includes: a calculation processing unit for separating chrominance components of the pixel data constituting the color picture image into lamellar components and vortex components, a lamellar vector analysis connecting unit for generating divergence components representing the lamellar components separated in the calculation processing unit in the form of a differentiation and carrying out edge formation, a vortex vector analysis connecting unit for generating rotation components representing the vortex components separated in the calculation processing unit in the form of a differentiation, and an edge extracting unit for comparing at least one of the output of the lamellar vector analysis connecting unit and the output of the vortex vector analysis connecting unit with a predetermined value and carrying out a detection of an edge of the color picture image based on the result of the comparison.

REFERENCES:
patent: 2920131 (1960-01-01), Valensi
patent: 3860953 (1975-01-01), Cutler et al.
patent: 4141034 (1979-02-01), Netravali et al.
patent: 4500919 (1985-02-01), Schreiber
patent: 4816901 (1989-03-01), Music et al.

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