Image processing device and method for identifying an input image and copier including same
US6091844A · kind A · utility
29Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1997 |
| Grant date | Jul 18, 2000 |
| Priority date | — |
| Expiry date | Aug 20, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/75
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An image processing device and method for identifying an input image and a copier including such an image processing device and method. The image processing device forms a gradated image from the input image, determines whether the gradated image includes a specified pattern, extracts a portion of the input image corresponding to the specified pattern, and compares the extracted portion of the input image with a reference pattern to determine a degree of resemblance between the extracted portion of the input image and the reference pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.