×

Method and apparatus for tone adjustment correction on rendering gray level image data

  • US 5,694,224 A
  • Filed: 12/08/1994
  • Issued: 12/02/1997
  • Est. Priority Date: 12/08/1994
  • Status: Expired due to Term
First Claim
Patent Images

1. An apparatus for producing an image, comprising:

  • means for providing first signals representing gray level unrendered pixel values of an image to be rendered;

    rendering means for rendering the image by comparing the unrendered pixel values with corresponding threshold values and generating second signals representing gray level rendering pixel values for the image;

    memory means for storing the second signals and for outputting signals representing gray level rendering pixel values for the image to a tone adjustment means;

    tone adjustment means responsive to signals output from said memory means and representing gray level rendering pixel values for producing third signals representing tone adjusted gray level rendering pixel values for the image; and

    printing means responsive to said third signals for producing a gray level reproduction of the image.

View all claims
  • 13 Assignments
Timeline View
Assignment View
    ×
    ×