Almost Ideal Contrast Visual Cryptography with Reversing
Almost Ideal Contrast Visual Cryptography with Reversing
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DOI:
10.1007/978-3-540-24660-2_27
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发表时间:
2004-02
期刊:
影响因子:
--
通讯作者:
Quang Viet Duong;K. Kurosawa
中科院分区:
文献类型:
--
作者:
Quang Viet Duong;K. Kurosawa
A drawback of visual cryptography schemes (VCS) is much loss of contrast in the reconstructed image. This paper shows that no loss of contrast can be almost achieved if we are allowed to use a very simple non-cryptographic operation, reversing black and white. Many copy machines have this function these days. Therefore, our VCS is very attractive.