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US 2003/0231802 A1Published application
Image processing apparatus
AssigneeFuji Xerox Co., Ltd.
InventorsMasanori Sekino, Takashi Sakamoto, Ryoko Saitoh
Life of this patent
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Abstract
An image processing apparatus changes a pixel value of a pixel of interest in image data to be processed by a predetermined condition concerning a spatial frequency to generate corrected image data, and performs a predetermined coding process with regard to the corrected image data to generate coded data. Thus, processor load in the coding process can be reduced.
Claims6
An image processing apparatus comprising:
- a corrector for changing a pixel value of a pixel of interest in image data to be processed, by a predetermined condition concerning a spatial frequency to generate corrected image data;
- and
- an encoder for performing a predetermined coding process with regard to the corrected image data to generate coded data.
A method of generating coded data, comprising the steps of:
- changing a pixel value of a pixel of interest in image data to be processed by a predetermined condition concerning a spatial frequency to generate corrected image data;
- and
- performing a predetermined coding process with regard to the corrected image data to generate coded data.
A coding program which causes a computer to perform the steps of
- changing a pixel value of a pixel of interest in image data to be processed by a predetermined condition concerning a spatial frequency to generate corrected image data;
- and
- performing a predetermined coding process with regard to the corrected image data to generate coded data.
Dependencies are inferred from the claim text.