Method for design and implementation of an image resolution enha

Details Method for design and implementation of an image resolution enha Method for design and implementation of an image resolution enha

1993-12-17

1997-12-09

Boudreau, Leo

Image analysis

Image enhancement or restoration

395102, 395109, G06K 940, G06F 1500

Patent

active

056968450

ABSTRACT:
The present invention is a method and apparatus for improving the appearance of printed documents, and more specifically, to the use of a template matching process to enhance the fast-scan resolution of digital images while maintaining raster resolution for printing. The present invention uses multiple-bit per pixel, statistically generated templates, implemented using look-up tables, to improve document appearance by converting from a single-bit per pixel to N-bits per pixel, while preserving raster resolution of the printed output. The resulting N-bit per pixel image signals may be utilized to control a scanning beam where the beam varies in intensity and duration according to the pulses used to control it.

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