Method and machine for reproducing a color picture by storing si

Details Method and machine for reproducing a color picture by storing si Method and machine for reproducing a color picture by storing si

1979-07-23

1981-05-26

Richardson, Robert L.

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 146

Patent

active

042701414

ABSTRACT:
A method and machine for reproducing a picture are disclosed, in which a color original picture is scanned and the analog original picture signal thereby produced is broken into n separation picture signals, which are then digitalized. One of these separation picture signals is then stored in its entirety in a memory, while the others are sampled according to regular patterns, the sampled values being stored in the memory. Then digital output separation picture signals are read out of the memory, by reading out the first separation picture signal without alteration, and by reading out the others while interpolating between the stored values. The output signals are then used to record a reproduction picture. In embodiments, the entirely-stored picture signal can be a gray signal, while the sampled picture signals are color signals; or the entirely-stored picture signal can be a green signal, while the sampled picture signals are red and blue color signals.

REFERENCES:
patent: 4060829 (1977-11-01), Sakamoto

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