2015 Fiscal Year Final Research Report
Extended Visual Cryptography Scheme for Continuous-Tone images
| Project/Area Number |
24650035
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Media informatics/Database
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2016-03-31
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| Keywords | 視覚情報処理 / 画像処理 / 視覚復号型暗号 |
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| Outline of Final Research Achievements |
Extended visual cryptography is a kind of cryptography which can be decrypted by only human visual system without any computation. For instance, a secret image can be reconstructed by stacking the transparent sheets with some other images. The conventional visual cryptography schemes are based on binary images and boolean operations. Therefore it is inevitable that encrypted and/or decrypted images are distorted by the encryption process when continuous-tone images are input to be encrypted. This study aims at improving the image quality by using continuous-tone with in the extended visual cryptography when continuous-tone images are to be encrypted.
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| Free Research Field |
メディア情報処理
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