F5-A Steganographic Algorithm

F5-A Steganographic Algorithm
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DOI:
10.1007/3-540-45496-9_21
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发表时间:
2001-04
期刊:
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影响因子:
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通讯作者:
Andreas Westfeld
Andreas Westfeld
中科院分区:
其他
文献类型:
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作者:
Andreas Westfeld

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许多隐写系统对视觉和统计攻击的抵抗力很弱。没有这些弱点的系统只能提供相对较小的隐写消息容量。新开发的算法F5可以承受视觉和统计攻击,但它仍然提供了很大的隐写容量。F5实现了矩阵编码,提高了嵌入效率。因此,它减少了必要变化的数量。F5采用置换跨越,将变化均匀地扩散到整个隐写图中。
Many steganographic systems are weak against visual and statistical attacks. Systems without these weaknesses offer only a relatively small capacity for steganographic messages. The newly developed algorithm F5 withstands visual and statistical attacks, yet it still offers a large steganographic capacity. F5 implements matrix encoding to improve the efficiency of embedding. Thus it reduces the number of necessary changes. F5 employs permutative straddling to uniformly spread out the changes over the whole steganogram.