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.

Date of Patent:
Jan. 23, 2018

Filed:

Mar. 27, 2017
Applicant:

Xerox Corporation, Norwalk, CT (US);

Inventors:

Sudhagar Subbaian, Coimbatore, IN;

Sainarayanan Gopalakrishnan, Chennai, IN;

Assignee:

Xerox Corporation, Norwalk, CT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/405 (2006.01); H04N 1/52 (2006.01); H04N 1/409 (2006.01); G06F 3/12 (2006.01);
U.S. Cl.
CPC ...
H04N 1/405 (2013.01); G06F 3/1219 (2013.01); G06F 3/1229 (2013.01); H04N 1/4092 (2013.01); H04N 1/52 (2013.01); H04N 2201/0094 (2013.01);
Abstract

Methods and devices create a first halftone image and a different second halftone image from a continuous tone image. A third halftone image is produced by identifying pixels that are common to both the first and second halftone images. A toner reduction mask is applied to the third halftone image to produce a fourth halftone image (the fourth halftone image has only holes and remaining ones of the common pixels). The holes are added to the first halftone image to create a reduced-toner halftone image. Further, edges of features within the continuous tone image are detected (to identify edge pixels of the edge features) and such edge pixels are added to the reduced-toner halftone image to produce a print-ready halftone image. Finally, such methods print the print-ready halftone image on print media.


Find Patent Forward Citations

Loading…