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Image processing apparatus, image processing method, and computer product

  • US 20050018258A1
  • Filed: 07/23/2004
  • Published: 01/27/2005
  • Est. Priority Date: 07/24/2003
  • Status: Abandoned Application
First Claim
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1. An image processing apparatus comprising;

  • an input unit to input an image signal created by optically scanning a document;

    a first filtering unit to perform a first filtering process on the image signal input by the input unit to reduce degradation of image quality caused by optical scanning of the document;

    a compressing unit to irreversibly compress the image signal filtered by the first filtering unit;

    a storage unit to store the image signal compressed by the compressing unit;

    an expanding unit to expand compressed image signal stored in the storage unit; and

    a second filtering unit to perform a second filtering process on the image signal expanded by the expanding unit to reduce degradation image quality caused by compression of the image signal.

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