Video processing apparatus for processing pixel for generating high-picture-quality image, method thereof, and video printer to which they are applied
US6570673B2 · kind B2 · utility
11Cited by
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5Claims
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Key dates
| Filing date | Jun 8, 2001 |
| Grant date | May 27, 2003 |
| Priority date | — |
| Expiry date | Jul 28, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2215/0071
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video processing apparatus according to the present invention includes edge detecting means for detecting an edge direction of an image, coefficient selecting means for selecting a coefficient based on the edge direction detected by the edge detecting means, and filter means for filtering a frequency band by using a frequency characteristic corresponding to the coefficient selected by the coefficient selecting means, wherein the number of pixels of the image is enlarged twice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.