Fragile image watermarking using a gradient image for improved localization and security

被引：87
|
作者：
Suthaharan, S [1 ]
机构：
[1] Univ N Carolina, Dept Math Sci, Greensboro, NC 27402 USA
来源：
PATTERN RECOGNITION LETTERS | 2004年 / 25卷 / 16期
关键词：
fragile watermarking; gradient image; vector quantization attack; block-wise independent watermark;
D O I：
10.1016/j.patrec.2004.08.017
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
A fragile watermarking algorithm for image authentication and tamper detection is proposed. It uses a gradient image and its structure to achieve localization and security requirements. It provides superior localization with greater security against many attacks including vector quantization attack. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：1893 / 1903
页数：11
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