Image-processing device processing image data by judging a detected and expanded medium-density field as a non-character edge field
US7139100B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 23, 2002 |
| Grant date | Nov 21, 2006 |
| Priority date | — |
| Expiry date | Feb 23, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/6072
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image-processing device applies a predetermined process to input image data so as to output the processed image data. The image-processing device comprises a medium-density detection unit, an expansion unit, and a non-character edge judgment unit. The medium-density detection unit detects a medium-density field of an image represented by the image data. The expansion unit applies an expansion process to the medium-density field detected by the medium-density detection unit. The non-character edge judgment unit judges the medium-density field applied with the expansion process by the expansion unit as a non-character edge field of the image represented by the image data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.