Image forming apparatus

Details Image forming apparatus Image forming apparatus

2007-05-22

2011-10-25

Ahmed, Samir (Department: 2624)

Image analysis

Image compression or coding

C382S252000, C382S100000, C382S169000, C382S248000, C382S276000, C358S003130

Reexamination Certificate

active

08045809

ABSTRACT:
In an image forming apparatus includes a quantization threshold value to convert input image data of an N value to output image data of an M value based on random dither processing. A flag to designate addition of a non-periodic component to a quantization threshold value can be set for each quantization threshold value and a threshold value that has a non-periodic component is added to the quantization threshold value based on a relation between a large and a small quantization threshold value in different threshold value levels with respect to any target pixel in the quantization threshold value.

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Japanese Office Action issued on Jan. 18, 2011 in corresponding Japanese Application No. 2006-146969.

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