Digital luminance/chrominance separation apparatus

Details Digital luminance/chrominance separation apparatus Digital luminance/chrominance separation apparatus

1989-08-25

1991-02-19

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 36, H04N 9535

Patent

active

049949063

ABSTRACT:
A luminance and chrominance signal separator includes a linear and a non-linear type vertical comb filters which receives a digital composite video signal having the luminance and chrominance signal. The linear and the non-linear type vertical comb filter is selectively used in response to correlation detection between successive vertical lines of the digital composite video signal so that both color smear and aliasing noise are eliminated. If necessary, a linear and a non-linear type horizontal filters are further provided wherein one is selectively used in response to a correlation detection result between successive picture elements of the digital composite video signal so that the cross-color component can be eliminated.

REFERENCES:
patent: 4524382 (1985-06-01), Tanaka et al.
patent: 4661842 (1987-04-01), Ishige et al.

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