Low pass blurring image filter for filtering only green
US6301384A · kind A · utility
3Cited by
6References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 25, 1999 |
| Grant date | Oct 9, 2001 |
| Priority date | — |
| Expiry date | Aug 25, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T5/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for efficiently filtering or otherwise processing digital color image data. The invention may be implemented in hardware, firmware or software. In one embodiment, the green color signal is filtered while the blue and red color signal are not filtered. This results in less filtering circuitry and processing time, while retaining the sharpness of the unfiltered signals. Since the human eye is more sensitive to the color green, filtering this color produces the greatest amount of noise reduction per color. Alternative color and filtering arrangements are also disclosed as is file conversion logic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.