Facsimile and static presentation processing – Static presentation processing – Attribute control
Reexamination Certificate
2006-06-20
2006-06-20
Poon, King Y. (Department: 2624)
Facsimile and static presentation processing
Static presentation processing
Attribute control
C358S002100, C358S003050, C358S003260, C358S003270, C382S258000, C382S261000, C382S275000, C382S304000
Reexamination Certificate
active
07064862
ABSTRACT:
A printer performs printing after appropriately correcting irregularities, thin-line patchiness, and isolated pixels. A first image-quality corrector unit detects slanting-line irregularities represented by the black and white pixel data generated through binary processing according to a method other than the error-variance method to thereby perform smoothing processing therefor. A second image-quality corrector unit detects defects such as irregularities and patchiness specific to the binary processing according to the error-variance method to thereby perform smoothing processing therefor. A third image-quality corrector unit detects isolated pixels in gray fields that are specific to the binary processing according to the error-variance method to thereby distribute the isolated pixels to peripheral pixels. When an original image is reduced in size according to pixel-removal prior to the binary processing, the pixel-removal is not performed if a gradient variation is relatively great with respect to peripheral pixels.
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Divine Lucas
Fuji 'Xerox Co., Ltd.
Poon King Y.
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