Information processing apparatus and method of controlling the same
US8718409B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2010 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | May 24, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/90
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In verification of image data of a captured image as to whether it is original one, the verification is possible even for image data subjected to a peripheral illumination correction or an exposure correction. An order information calculation unit selects a pixel set including two or more pixels based on pixel values and information on an image space of image data of a captured image, and calculates an order of magnitude between pixels in the selected pixel set. A verification data producing unit generates verification data used in verification of whether the image data has not been tampered with, based on the calculated order of magnitude. An image output unit outputs the image data and the verification data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.