Apparatus and method for arbitrary binary resolution conversion

Details Apparatus and method for arbitrary binary resolution conversion Apparatus and method for arbitrary binary resolution conversion

1995-07-26

1996-09-03

Razaw, Michael L.

Image analysis

Image transformation or preprocessing

Changing the image coordinates

358445, G06K 936

Patent

active

055531717

ABSTRACT:
A method of arbitrary image resolution conversion takes an original print ready image at a first resolution and orientation and simulates printing of that image by creating a representation of a page at a particular resolution and orientation using a suitable spot model for the reconstruction function. The image is then filtered with a low pass filter and sampled with an aperture that corresponds to the desired output. The image data, which may be definable at several bits per pixel, is then made print-ready by reducing the number of bits defining each pixel to a valid output state. The reduction step is accomplished through error diffusion methods that maintain the local area gray density level. The filtering step reduces moire in the converted image.

REFERENCES:
patent: 4194221 (1988-03-01), Stoffel
patent: 4829587 (1989-05-01), Glazer et al.
patent: 5185852 (1993-02-01), Mayer
patent: 5208871 (1993-05-01), Eschbach
patent: 5270836 (1993-12-01), Kang
patent: 5301037 (1994-04-01), Kang et al.
patent: 5355233 (1994-10-01), Okamoto
patent: 5363213 (1994-11-01), Coward et al.
Stremler, Ferrel G. "Introduction to Communication Systems" pp. 124-125, 1982.
European Patent Application; Publication No. 0 206 401; "Method of Enlarging/Reducing a Dithered Image"; Nov. 6, 1986.
European Patent Application; Publication No. 0 220 568; "Method of and Apparatus for Generating High-Resolution Bilevel Image Data", Jun. 5, 1987 .

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