Binary to multi-value conversion apparatus for improved image re

Details Binary to multi-value conversion apparatus for improved image re Binary to multi-value conversion apparatus for improved image re

1994-06-17

1997-12-23

Vu, Kim

Image analysis

Image segmentation

Using projections

382292, 258462, 258464, H04N 1409

Patent

active

057013632

ABSTRACT:
An image processing apparatus is disclosed. The image processing apparatus incorporates an input device which inputs binary image data, a divider which divides the input binary image data into binary text/drawing data and binary photograph/graphics data, a multi-value processor in which the binary text/drawing data is converted to multi-value text/drawing data by a filter which interpolates an edge of an image and the binary photograph/graphics data is converted to multi-value photograph/graphics data by a filter which smooths an image, a mixer which mixes the multi-value text/drawing data and the multi-value photogaph/graphics data together into multi-value data, and an output device which outputs the multi-value data. In accordance with this invention, improved output images can be produced in which, for example, jagged images are reduced and faithful reproductions of an orignal image are achieved.

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Publication entitled "Digitale Bildverarbeitung" by Peter Haberacker dated 1989, pp. 182-187 (English paragraph attached).

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