Device for interpolating missing color-difference signal by aver

Details Device for interpolating missing color-difference signal by aver Device for interpolating missing color-difference signal by aver

1987-02-17

1989-01-03

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 78, 358 44, H04N 146, H04N 907

Patent

active

047960850

ABSTRACT:
An apparatus interpolates color-difference line-sequential signals appearing alternately in a video signal together with a luminance signal. The video signal is received by an input circuit and then held temporarily and on a horizontal scanning line basis by a hold circuit. Each of the color-difference signals is interpolated by an interpolating circuit by producing an arithmetic mean of the color-difference data of the video signal being held by the hold circuit and color-difference data of the video signal being received by the input circuit, on the basis of the pixels corresponding to each other on horizontal scanning lines.

REFERENCES:
patent: 4577225 (1986-03-01), Pritchard
patent: 4580163 (1986-04-01), Hartmeier
patent: 4605956 (1986-08-01), Cok
patent: 4642678 (1987-02-01), Cok

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