DocumentCode
3596194
Title
Semi-fragile Watermarking Technique for Image Tamper Localization
Author
Zhou Hao ; Li, Haiyan ; Yu, Pengfei
Author_Institution
Inf. Sch., Yunnan Univ., Kunming, China
Volume
1
fYear
2009
Firstpage
519
Lastpage
523
Abstract
In this paper an image authentication scheme is proposed to locate tampered area correctly and accurately on the watermarked image. Semi-fragile watermarks are extracted from detail coefficients of wavelet transform and embedded into DCT coefficients. In order to enhance the security, chaotic sequence is employed to encrypt the watermark signals. Experimental results show the proposed technique is robust against JPEG lossy compression and noise pollution.
Keywords
cryptography; data compression; image coding; watermarking; DCT coefficients; JPEG lossy compression; encryption; image authentication scheme; image tamper localization; security enhancement; semifragile watermarking technique; wavelet transform; Authentication; Chaos; Cryptography; Discrete cosine transforms; Image coding; Noise robustness; Security; Transform coding; Watermarking; Wavelet transforms; DCT; JPEG-lossy; Keywords-Semi-fragile; tamper localization; watermarking;
fLanguage
English
Publisher
ieee
Conference_Titel
Measuring Technology and Mechatronics Automation, 2009. ICMTMA '09. International Conference on
Print_ISBN
978-0-7695-3583-8
Type
conf
DOI
10.1109/ICMTMA.2009.110
Filename
5203025
Link To Document