Systems and methods for estimating an image marking process using event mapping of scanned image attributes
US7336401B2 · kind B2 · utility
10Cited by
26References
38Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 19, 2003 |
| Grant date | Feb 26, 2008 |
| Priority date | — |
| Expiry date | Jan 26, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/00087
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods and systems used to automatically identify the marking process used for an image on a substrate based on spatial characteristics and/or color of the image. Image types which are classified and identified include continuous tone images and halftone images. Among halftone images separately identified are inkjet images, xerographic images and lithographic images. Locally adaptive image threshold techniques may be used to determine the spatial characteristics of the image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.