Method of modifying the geometric orientation of an image
US6834126B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2000 |
| Grant date | Dec 21, 2004 |
| Priority date | — |
| Expiry date | Jun 26, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T3/60
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of modifying the geometric orientation of a digital image in an image acquisition apparatus adapted to acquire an image in one amongst several different orientations and to store said image in the form of a compressed file, comprises the steps of acquiring an image in a chosen orientation; identifying the chosen orientation; converting said image into a digital image; spectral transformation (E10) of the digital image, determination (E12-E15) of a geometric transformation to be applied to the image acquired as a function of the chosen orientation; application (E16-E18) of the geometric transformation determined to symbols associated with spectral coefficients issuing from the spectral transformation; recording (E20), in the compressed file, two indicators representing a normal or reverse order of the symbols respectively in two directions of the digital image; and coding (E21) of the digital image in the compressed file.Use notably in a digital photographic apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.