Information recording apparatus for recording images using plura

Details Information recording apparatus for recording images using plura Information recording apparatus for recording images using plura

1993-06-29

1998-10-27

Le, N.

Incremental printing of symbolic information

Electric marking apparatus or processes

347 15, 358298, B41J 2385, B41J 2205, G01D 1506, H04N 121

Patent

active

058283960

ABSTRACT:
An information recording apparatus for recording a color image with improved resolving power and image quality is disclosed. Color image data are temporarily stored in a memory and compared with predetermined patterns in a wide reference area. If they coincide, indicating the presence of a contour of a pattern, an object pixel is modified to finer dots, in order to smooth the contour. There are also provided patterns indicating the features of dither images, in order to identify whether the color image data correspond to such dither image, and to avoid erroneous smoothing process that deteriorates the image quality of such dither image.

REFERENCES:
patent: 4437122 (1984-03-01), Walsh et al.
patent: 4604654 (1986-08-01), Sakurada et al.
patent: 4700201 (1987-10-01), Sato
patent: 4847641 (1989-07-01), Tung

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