Image processing apparatus, image processing method, and computer program product
US8526061B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 10, 2010 |
| Grant date | Sep 3, 2013 |
| Priority date | — |
| Expiry date | Mar 6, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/60
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image processing apparatus includes an object type determining unit that determines whether a drawing object in the input image data includes a color character group; a background area extracting unit that extracts the background area on which the color character group is formed in the drawing object; a monochromatic conversion unit that, when the drawing object is determined to include the color character group, generates monochromatic image data by performing monochromatic conversion of the input image data with minimum luminance of a main color; a pattern generating unit that, when the drawing object is determined to include the color character group, generates, according to the hue of the color character group, pattern image data to be added to the background area of the post-monochromatic-conversion color character group; and a synthesizing unit that synthesizes the monochromatic image data and the pattern image data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.