Image processor

Details Image processor Image processor

1995-11-15

1999-02-02

Evans, Arthur G.

395109, G06K 1500

Patent

active

058676341

ABSTRACT:
In an image processor, an image of document is read by an image sensor. A reduction ratio of the image is set. Then, interpolation is performed on the image data between a pixel under interest and a pixel adjacent to the pixel under interest according to the reduction ratio. After the interpolation, pixel data in the image data are thinned out to an image data having a size determined by the reduction ratio, and an image is formed on a sheet of paper based on the thined-out data. Because the interpolation is performed before the thinning-out of the image data, defects in a reduced image such as vanishment of a narrow line are reduced, and image quality is improved.

REFERENCES:
patent: 4920571 (1990-04-01), Abe et al.
patent: 5140648 (1992-08-01), Hackett et al.
patent: 5465166 (1995-11-01), Kamo
patent: 5563627 (1996-10-01), Kanada et al.

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