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Imae processing apparatus having mosaic processing feature that decreases image resolution without changing image size or the number of pixels

  • US 5,617,224 A
  • Filed: 02/03/1994
  • Issued: 04/01/1997
  • Est. Priority Date: 05/08/1989
  • Status: Expired due to Term
First Claim
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1. A printing apparatus comprising:

  • a) input means for inputting image data having a predetermined resolution;

    b) processing means for performing mosaic processing and normal processing of the image data input of said input means;

    c) reproduction means for reproducing an image based on the image data subjected to either the mosaic processing or the normal processing by said processing means;

    d) mode setting means for selecting a mosaic processing mode or a normal processing mode; and

    e) instruction means for instructing a start of printing, wherein said input means, said processing means and said reproduction means are operated in accordance with a one-time instruction of the start of printing by said instruction means,wherein said processing means, in the mosaic processing mode, divides the input image data into a plurality of rectangular block areas and paints each rectangular block area with a uniform color based on the image data in the rectangular block area so that the resolution of the image represented by the mosaic-processed image data is lower than the predetermined resolution without changing either a size of the image or a number of pixels for the image, and, in the normal processing mode, outputs processed image data so that the resolution of the image represented by the normal-processed image data is the same as the predetermined resolution.

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