具有理想对比度的一般存取结构可视密码方案

Perfect Contrast Visual Cryptography Scheme for General Access Structures

本文提出了一种基于取反运算可获得理想对比度的可视密码方案,适用于一般存取结构可以实现秘密图像无失真地恢复,并且没有像素扩展。该方案应用了简单的布尔运算实现了传统可视密码方案中单纯的叠加运算无法实现的功能。

In this paper,a perfect contrast visual cryptography scheme with reversing is proposed for general access structures,achieving the reconstructed image without distortion and expansion.This scheme applied simple Boolean operations besides stacking in traditional visual cryptography schemes.Compared with previous schemes,this