Process and circuit arrangement for contour correction of the lu

Details Process and circuit arrangement for contour correction of the lu Process and circuit arrangement for contour correction of the lu

1976-04-13

1978-04-25

Martin, John C.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

H04N 514

Patent

active

040866181

ABSTRACT:
The invention relates to a process for the contour correction of the luminance signal in a television camera in which a horizontal contour signal is added to a relatively poorly defined luminance signal in order to increase the vertical resolution, and a vertical contour signal is added thereto in order to increase the horizontal resolution. An additional contour signal (W.sub.HV) is formed from the product of the horizontal contour signal (W.sub.H) with the vertical contour signal (W.sub.V), which additional contour signal is deducted from the luminance signal (W.sub.O).

REFERENCES:
patent: 3804980 (1974-04-01), Lowry
patent: 3814847 (1974-06-01), Longuet

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