2024-03-29T09:09:05Z
https://kitami-it.repo.nii.ac.jp/oai
oai:kitami-it.repo.nii.ac.jp:00008263
2022-12-13T02:22:40Z
1:87
High-Chroma Visual Cryptography Using Interference Color of High-Order Retarder Films
Sugawara, Shiori
Harada, Kenji
Sakai, Daisuke
Visual cryptography
Information security
Interference color
Retarder film
Visual cryptography can be used as a method of
sharing a secret image through several encrypted images.
Conventional visual cryptography can display only monochrome
images. We have developed a high-chroma color
visual encryption technique using the interference color of
high-order retarder films. The encrypted films are composed
of a polarizing film and retarder films. The retarder
films exhibit interference color when they are sandwiched
between two polarizing films. We propose a stacking
technique for displaying high-chroma interference color
images. A prototype visual cryptography device using
high-chroma interference color is developed.
journal article
Springer
2015
application/pdf
Optical Review
22
544
552
https://kitami-it.repo.nii.ac.jp/record/8263/files/12著者版.pdf
eng
http://doi.org/10.1007/s10043-015-0095-4
c2015 Springer