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。

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.

youdao

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。

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.

youdao