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摘要：通过翻转操作来构造图像分存方案的新方法。所构造的分存方案将秘密图像以一
种无需任何密码学知识的安全方式进行编码，且无需额外地隐藏处理过程就能生成有意义的分
存图像。该分存方案没有像素膨胀，且不需要设计码本。秘密黑色像素的重构是完美的，所有
的秘密黑色像素都能够被精准地恢复。首先利用翻转操作构造一个有意义的(2, 2)方案，继而扩
展出一个有意义的(2, n)方案。理论证明和实验结果表明了提出的分存方案正确和有效。
Abstract: A new method for constructing XOR-based secret image sharing scheme by flipping#br# operations. The proposed scheme encodes a secret image in a perfect secure way without any#br# knowledge of cryptography. The meaningful shares can be directly generated by the proposed scheme#br# without any extra data hiding process. Meanwhile, neither pixel expansion nor extra codebook is#br# needed in the proposed scheme. Further, the reconstruction of black pixels is perfect, which means all#br# the revealed pixels associated to secret black pixels are always black. First, a meaningful (2, 2)#br# XOR-based image sharing scheme is constructed by flipping operations. Subsequently, a meaningful#br# (2, n) scheme is extended as well. Theoretical analysis and experimental results demonstrate the#br# correctness and feasibility of the proposed scheme.
