Vertical/horizontal contour correction system

Details Vertical/horizontal contour correction system Vertical/horizontal contour correction system

1991-07-19

1992-06-23

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 11, H04N 1120

Patent

active

051247879

ABSTRACT:
A vertical/horizontal contour correction system comprising a vertical contour correction arrangement for separating a luminance signal Y and a chromaticity signal C from a composite video signal inputted therein, performing a vertical contour correction with respect to the chromaticity and luminance signals C and Y and outputting signals Y', I' and Q', each of vertical contours of which has been corrected; and a horizontal contour correction arrangement for inputting said signals Y', I' and Q' from the vertical contour correction performing a horizontal contour correction with respect to the signals Y', I' and Q' and outputting signals Y", I" and Q", each of horizontal contours of which has been corrected. Therefore, the present system is capable of performing the vertical/horizontal contour corrections with reference to both the luminance signal and the chromaticity signal so that an image to be displayed on the screen can be presented more distinctly to the viewer.

REFERENCES:
patent: 4365266 (1982-12-01), Lagoni
patent: 4386434 (1983-05-01), Gibson et al.
patent: 4558347 (1985-12-01), Pritchard et al.
patent: 4754322 (1988-06-01), Okuda et al.

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