Method for improving sharpness when recording half-tone pictures

Details Method for improving sharpness when recording half-tone pictures Method for improving sharpness when recording half-tone pictures

1975-02-12

1977-01-25

Murray, Richard

Facsimile and static presentation processing

Static presentation processing

Attribute control

G03F 308

Patent

active

040054756

ABSTRACT:
A method and apparatus for improving sharpness when recording half tone pictures wherein picture signals are provided by means of optical/electrical scanning of picture patterns which are superimposed for an increase of sharpness during recording while utilizing a sharpness signal which is provided during the scanning process wherein the sharpness signal is changed in accordance with the picture content of the picture pattern prior to superposition thereof with the signals derived from scanning the picture.

REFERENCES:
patent: 2799722 (1957-07-01), Neugebauer
patent: 3194882 (1965-07-01), Hall
patent: 3275741 (1966-09-01), Hughes et al.
patent: 3450830 (1969-06-01), Kyte
patent: 3564120 (1971-02-01), Taylor
patent: 3588322 (1971-06-01), Bartel et al.
patent: 3621126 (1971-11-01), Taudt et al.

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