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Converting between color and monochrome

  • US 8,885,212 B2
  • Filed: 02/28/2011
  • Issued: 11/11/2014
  • Est. Priority Date: 02/28/2011
  • Status: Active Grant
First Claim
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1. An image processing apparatus or processing color charts, said image processing apparatus comprising:

  • a maintenance part configured to maintain color conversion information mapping each of a plurality of colors to a corresponding line pattern;

    a determination part configured to receive color image data for an image, determine a two-dimensional area of the image having a first color that is homogeneous in said two-dimensional area, and determine, based on the color conversion information maintained by the maintenance part, a first line pattern corresponding to the first color; and

    a processing part configured to modify the image by reproducing the two-dimensional area with the first line pattern in place of the first color, to generate a converted image,wherein the determination part determines that adjacent two-dimensional areas of the image include different shades of a particular color, andthe processing part adjusts a line pattern corresponding to one of said adjacent two-dimensional areas, by increasing or decreasing the width of the lines in the line pattern.

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