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抄録
Visual cryptography is known as a method of sharing a secret image through several encrypted images. Conventional visual cryptography can display only monochrome images. We develop a multicolor visual encryption technique using the interference color of high-order retarder films. The encrypted films are composed of a polarizing film and retarder films. Retarder films exhibit an interference color upon sandwiching between two polarizing films. A prototype of a visual cryptography device using interference color is developed. Eight colors are represented by combining an encrypted image and a decoding mask composed of retarder films with various retardations.
収録刊行物
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- Japanese Journal of Applied Physics
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Japanese Journal of Applied Physics 52 (6R), 2013-05
The Japan Society of Applied Physics
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詳細情報 詳細情報について
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- CRID
- 1050282813785006464
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- NII論文ID
- 120005821378
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- NII書誌ID
- AA12295836
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- ISSN
- 00214922
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- NDL書誌ID
- 024644627
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- 本文言語コード
- en
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- 資料種別
- journal article
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- データソース種別
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- IRDB
- NDL
- CiNii Articles