Method for setting up highlight and shadow point density values

Details Method for setting up highlight and shadow point density values Method for setting up highlight and shadow point density values

1981-03-05

1983-02-01

Gellner, Michael L.

Photocopying

Projection printing and copying cameras

Methods

355 68, G03B 2780

Patent

active

043712606

ABSTRACT:
A method for setting up density values of highlight and shadow points of original pictures to a picture reproducing machine such as a color scanner and a color facsimile, wherein one of the original pictures now being scanned is discriminated to output a discrimination signal, and wherein the highlight and the shadow point density values or values corresponding to a density range of the one original picture are read out of a memory in which the highlight and the shadow point density values or the values corresponding to the density ranges of the original pictures are stored, by addressing the memory by means of the discrimination signal, and then are set up to the picture reproducing machine.

REFERENCES:
patent: 4206998 (1980-06-01), Tokuda
patent: 4279502 (1981-07-01), Thurm et al.
patent: 4286868 (1981-09-01), Laska

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