Image printing system, method, and computer-readable medium for determining dot formation for edge and fine drawing color pixel based on the result of edge and fine drawing detection
US8320020B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 2009 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | Sep 26, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/4057
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image printing system which determines dot forming condition when printing an image containing a plurality of pixels by using dots of a plurality of sizes includes: a fine drawing detecting unit which detects a dot color fine drawing pixel having a dot color used for printing the image and positioned on a fine drawing portion having a drawing width equal to or smaller than a predetermined value; an edge area detecting unit which detects a dot color edge area pixel having a dot color used for printing the image and positioned at a distance equal to or shorter than a predetermined value from an edge of the image; a first dot allocating unit which allocates dots such that a dot of predetermined size in the dots of the plural sizes can be formed for the dot color fine drawing pixel during printing the image; and a second dot allocating unit which allocates dots such that a dot of a size determined according to the distance from the edge of the image in the dots of the plural sizes can be formed for the dot color edge area pixel not corresponding to the dot color fine drawing pixel during printing the image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.