Image processing device, image processing method for embedding a watermark in a color image
US10873679B2 · kind B2 · utility
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7Claims
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Key dates
| Filing date | Jan 27, 2016 |
| Grant date | Dec 22, 2020 |
| Priority date | — |
| Expiry date | Jun 24, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/387
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Certainty of detecting watermarks embedded in a color image is increased. Image date acquisition means of an image processing device acquires image data on a color image having a plurality of color channels. Numerical value acquisition means acquires respective numerical values in the plurality of color channels contained in a pixel value of the color image based on the image data acquired by the image data acquisition means. Image processing means embed a watermark in each of the plurality of color channels by changing the numerical value acquired by the numerical value acquisition means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.