Image comparison using color histograms
US8897553B2 · kind B2 · utility
9Cited by
41References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 13, 2011 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | Dec 7, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/48
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods, apparatus and articles of manufacture for image comparison using color histograms are disclosed. An example method disclosed herein to compare a first image and a second image comprises obtaining a first color histogram for a first set of pixels sampled from the first image, obtaining a second color histogram for a second set of pixels sampled from the second image, determining a comparison metric based on differences between bin values of the first color histogram and adjusted bin values of the second color histogram, and determining whether the first image and the second image match based on the comparison metric.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.