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Image processing system having variably controllable pixel density patterns

  • US 5,696,853 A
  • Filed: 02/26/1993
  • Issued: 12/09/1997
  • Est. Priority Date: 02/28/1992
  • Status: Expired due to Term
First Claim
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1. An image processing apparatus comprising:

  • input means for inputting image data of a pixel of interest, the image data for the pixel of interest having plural bits;

    density pattern generating means for generating a predetermined density pattern corresponding to a density level of the image data inputted by said input means; and

    random number generating means for generating a random number which differs from a random number generated for a previous pixel of interest;

    wherein said density pattern generating means includes means for changing a growth direction of the density pattern so that the growth direction of the density pattern changes in accordance with the random number generated by said random number generating means.

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