System and method for enhancing the legibility of images
US9269126B2 · kind B2 · utility
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12References
27Claims
0Family size
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Key dates
| Filing date | Jul 24, 2013 |
| Grant date | Feb 23, 2016 |
| Priority date | — |
| Expiry date | Feb 10, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/34
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method are described for enhancing readability of scanned document images by operating on each document individually. Via principle component analysis, edge detection and local color contrast computation, an automated method removes image background noise and improves sharpness of the scripts and characters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.