Image analysis – Histogram processing – For setting a threshold
Patent
1992-06-19
1994-01-25
Moore, David K.
Image analysis
Histogram processing
For setting a threshold
3582612, G06K 936
Patent
active
052822567
ABSTRACT:
An image data coding method for a case where image data are transmitted or filed upon being binary coded includes steps of replacing a predetermined pixel by a predicted value predicted by a plurality of pixels peripheral to the predetermined pixel, in conformance with a coded image data compression technique, and performing binary coding while dispersing an error, which is generated by the replacement, among peripheral pixels. Also provided are a variety of image data coding apparatus for practicing this image data coding method. The invention makes it possible to perform binary coding and compression of half-tone image data very efficiently.
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Katayama Akihiro
Ohsawa Hidefumi
Anderson David R.
Canon Kabushiki Kaisha
Moore David K.
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