Image processing apparatus including means for performing electr

Details Image processing apparatus including means for performing electr Image processing apparatus including means for performing electr

1990-05-04

1992-05-12

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358451, H04N 146

Patent

active

051132524

ABSTRACT:
An image processing apparatus of this invention includes a unit for calculating an average value in a first block pixel area including an objective pixel, a unit for calculating an average value in a second block pixel area including the objective pixel, and a binarization unit for determining, as a binary output of the objective pixel, a binarization result obtained by binarizing the average value in the second block pixel area by the average value in the first block pixel area as a threshold value.

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patent: 4962421 (1990-10-01), Murai

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