Secure information display with limited viewing zone by use of multi-color visual cryptography.
Secure information display with limited viewing zone by use of multi-color visual cryptography.
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DOI：
10.1364/opex.12.001258
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发表时间：
2004-04
期刊：
影响因子：
3.8
通讯作者：
Hirotsugu Yamamoto;Y. Hayasaki;N. Nishida
中科院分区：
文献类型：
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作者：
Hirotsugu Yamamoto;Y. Hayasaki;N. Nishida
我们提出了一种通过使用视觉密码学来确保视觉信息安全的显示技术。除非通过解码掩模查看，否则显示的图像显示为完全随机的图案。显示器具有带有解码掩模的有限观看区域。我们开发了多色加密代码集。由红色、绿色、蓝色和黑色子像素组成的显示图像和由透明和不透明子像素组成的解码掩模的组合来表示八种颜色。此外，我们还演示了使用液晶面板的安全信息显示。
We propose a display technique that ensures security of visual information by use of visual cryptography. A displayed image appears as a completely random pattern unless viewed through a decoding mask. The display has a limited viewing zone with the decoding mask. We have developed a multi-color encryption code set. Eight colors are represented in combinations of a displayed image composed of red, green, blue, and black subpixels and a decoding mask composed of transparent and opaque subpixels. Furthermore, we have demonstrated secure information display by use of an LCD panel.