Image smoothing method and apparatus

Details Image smoothing method and apparatus Image smoothing method and apparatus

1993-12-20

1997-04-01

Fuller, Benjamin R.

Incremental printing of symbolic information

Electric marking apparatus or processes

Electrostatic

347240, 347251, 358459, 358298, 395110, B41J 247, H04N 121, H04N 123, G06F 1700

Patent

active

056171307

ABSTRACT:
An image smoothing apparatus which forms dot images on a matrix array and smooths images of curvatures or diagonals included in the dot images. The apparatus includes a shifting unit which shifts a specific pixel to generate first smoothing video data, thereby selecting a divided video data for defining a time interval and timing of the specific pixel, and a masking unit which subjects divided video data to a Boolean conjunction operation with a mask pattern to generate second smoothing video data. Smoothed video data for the specific pixel is formed by selecting suitable operations from among the shifting and masking according to the arrangement of reference pixels adjoining to the specific pixel.

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patent: 4847641 (1989-07-01), Tung
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