Automatic image signal correcting device

Details Automatic image signal correcting device Automatic image signal correcting device

1992-06-17

1993-03-23

Razavi, Michael T.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 21R, H04N 964

Patent

active

051969238

ABSTRACT:
A video signal correction device is arranged to form a correction signal corresponding to an input video signal, to add the correction signal to the input video signal for correcting the video signal, and, in adding the correction signal to the video signal, to vary the level of the correction signal according to the level of the input video signal. This arrangement enables the device to correct the video signal always in an optimum manner for improved reproducibility of the video signal.

REFERENCES:
patent: 4602277 (1986-07-01), Guichard
patent: 4706108 (1987-11-01), Kumagai et al.
patent: 4962418 (1990-10-01), Kamaga
patent: 4963978 (1990-10-01), Ueda et al.

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