Image processing apparatus and method thereof

Details Image processing apparatus and method thereof Image processing apparatus and method thereof

2011-08-23

2011-08-23

Perungavoor, Sath V (Department: 2624)

Facsimile and static presentation processing

Natural color facsimile

Specific image-processing circuitry

C382S199000

Reexamination Certificate

active

08004732

ABSTRACT:
When a halftone dot region includes a character or line drawing, high extraction performance of a halftone dot region cannot be obtained. Hence, the isolation amount of a pixel of interest is calculated, and the isolation amounts are integrated in a plurality of areas having different sizes. Thresholds set for respective areas are compared with the integration result to determine whether or not the pixel of interest belongs to a halftone dot region.

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