Image forming apparatus with color adjustment

Details Image forming apparatus with color adjustment Image forming apparatus with color adjustment

1996-10-07

1999-11-09

Lee, Thomas D

Image analysis

Image enhancement or restoration

Intensity, brightness, contrast, or shading correction

382275, H01N 140

Patent

active

059829478

ABSTRACT:
A digital image forming apparatus capable of allowing the colors of an image to be adjusted is disclosed. The apparatus guarantees tonality in a high image density portion and allows a low image density portion to be reproduced with a target density. Tonality correction tables can be generated without regard to the material of a recording medium or whether or not a cover plate or an ADF (Automatic Document Feeder) is laid on the medium. Further, the contribution of background data included in a scanner output representative of exclusive patterns can be determined machine by machine.

REFERENCES:
patent: 4751377 (1988-06-01), Ishizaka et al.
patent: 5258783 (1993-11-01), Sasanuma et al.
patent: 5321524 (1994-06-01), Yanagita

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