Method of performing lens effect using transform mask
US6810151B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 5, 2001 |
| Grant date | Oct 26, 2004 |
| Priority date | — |
| Expiry date | Jun 13, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2200/12
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of performing a lens effect to determine a realistic pixel content of a realistic pixel transformed by a virtual lens from a plurality of image pixels is disclosed. First, an offset mask having an offset value corresponding to a pixel point in the virtual lens is provided, and a plurality of weight masks respectively corresponding to the image pixels are also provided, each of the weight masks having a weight value corresponding to the pixel point. Then, a reference pixel position is calculated by adding a realistic pixel position to the offset value, and one of the image pixels with a position equal to the reference pixel position is selected as a reference pixel. Finally, a weighted process is performed on the addition of an adjacent pixel content and a reference pixel content according to the weight value in a first weight mask of the weight masks, thereby the realistic pixel content of the realistic pixel is acquired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.