Content-Fragile Commutative Watermarking-Encryption Based on Pixel Entropy

被引：0
|
作者：
Schmitz, Roland [1 ]
Li, Shujun [2 ]
Grecos, Christos [3 ]
Zhang, Xinpeng [4 ]
机构：
[1] Stuttgart Media Univ, Stuttgart, Germany
[2] Univ Surrey, Guildford GU2 5XH, Surrey, England
[3] Sohar Univ, Sohar, Oman
[4] Shanghai Univ, Shanghai, Peoples R China
来源：
ADVANCED CONCEPTS FOR INTELLIGENT VISION SYSTEMS, ACIVS 2015 | 2015年 / 9386卷
基金：
英国工程与自然科学研究理事会;
关键词：
Commutative watermarking-encryption; Content-fragile watermarking; Pixel entropy;
D O I：
10.1007/978-3-319-25903-1_41
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Content-fragile commutative watermarking-encryption requires that both the content-fragile image signature and the watermarking process are invariant under encryption. The pixel entropy, being dependent on first-order image statistics only, is invariant under permutations. In the present paper we embed semi-fragile signatures based on pixel entropy by using a histogram-based watermarking algorithm, which is also invariant to permutations. We also show how the problem of collisions, i.e. different images having the same signature, can be overcome in this approach, if embedder and encryptor share a common secret.
引用
收藏
页码：474 / 485
页数：12
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