Facsimile and static presentation processing – Static presentation processing – Attribute control
Reexamination Certificate
2006-10-31
2006-10-31
Rogers, Scott A. (Department: 2627)
Facsimile and static presentation processing
Static presentation processing
Attribute control
C358S003030, C358S003160, C358S003210, C358S003230, C358S534000, C358S535000
Reexamination Certificate
active
07130081
ABSTRACT:
The present invention relates to an image processing method, an image processing apparatus and a recording medium that convert a grey scale image into an area gradation image. The present invention intends to provide an image processing method, an image processing apparatus and a recording medium capable of increasing processing speed in a state where high image quality is maintained. In the image processing method and the image processing apparatus according to the present invention, image data of a C component and image data of an M component in grey scale image data are converted into halftone image data in accordance with an error diffusion method, and image data of a Y component are converted into halftone image data in accordance with a blue noise mask method.
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JPO Abstract & Machine English Translation of JP 08-307720.
JPO Abstract & Machine English Translation of JP 10-150563.
Haruo Sakata, et al; “Chromatic Spatial Frequency Characteristics of Human Visual System (color Difference Discrimiation)”; Television; vol. 31, No. 1; 1977; pp. 29-35; and English Translation.
Nose Masaki
Sato Kazuhiko
Armstrong, Kratz, Quintos Hanson & Brooks, LLP.
Fujitsu Limited
Rogers Scott A.
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