1996-03-06
1997-10-21
Fetting, Anton W.
395128, G06T 340
Patent
active
056805292
ABSTRACT:
It is the object of the present invention to perform reduction conversion processing while suppressing the loss of fine line when carrying out the reduction conversion of an image expressing in binary values. The present invention has a reduction operator which logically calculates the value of a converted pixel from a detection of fine lines in the vertical or diagonal direction, a detection of fine lines in the horizontal or diagonal direction and from the value of the original pixel closest to the converted pixel, within a limited region wherein the main scanning pixel number is 2N and the sub-scanning pixel number is 2N original pixels.
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Fetting Anton W.
Nippon Telegraph and Telephone Corporation
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