Visual cryptography scheme has its shortcomings: the contrast and resolution are decreased, and the pixel expansion makes the size of the share transparencies very big.
针对图视密码学方案存在的恢复图像的对比度和清晰度降低，且像素扩展太大，生成分存图像太大的缺点。
The design of above scheme is extended to the so-called "general access structure", a general reconstructed scheme is proposed for the existing visual cryptography schemes.
将上述方案的设计思想扩展到所谓的“一般存取结构”，对现有的可视密码方案提出了一个一般性的改造方案。
The design of above scheme is extended to the so-called "general access structure", a general reconstructed scheme is proposed for the existing visual cryptography schemes.
将上述方案的设计思想扩展到所谓的“一般存取结构”，对现有的可视密码方案提出了一个一般性的改造方案。
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