The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 02, 2000
Filed:
Mar. 22, 1996
Troy McConnell, Greensboro, NC (US);
Allan C Reitz, Greensboro, NC (US);
MCI Telecommunications Corporation, Washington, DC (US);
Abstract
The present invention provides a color-control method for use in an image reproducing process where the image is reduced to a plurality of pixels, with each pixel having a color value. The color control method uses a color control program in the image reproduction process. The color control program includes a color correction module and a color separation module. The color correction program provides a method for using HSL values to select which pixels will be color corrected. The color-separation program is used to convert RGB color values to YMCK color values and provides for undercolor removal and black generation. Undercolor removal removes gray components from the hue pixel data and replaces it with black pixel data. The black generation routine provides for the selection of pixels for which black will be added by the input of selected parameter of an HSL slice range.