Display of images with transparent pixels
US7012616B1 · kind B1 · utility
9Cited by
3References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 31, 2000 |
| Grant date | Mar 14, 2006 |
| Priority date | — |
| Expiry date | Mar 31, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T1/60
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Displaying images having pixels thereof that are meant to be transparent is disclosed. In one embodiment, a method includes a first stage and a second stage. The first stage is performed once, to transform the image and generate a mask thereof. The second stage is performed each time the image is to be displayed, to copy the transformed image and the mask onto the display. In one embodiment, the transparent image is shrunk and/or stretched when displayed. The cases of animated images and dithering for alpha blending are also disclosed and covered by the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.