Block-wise Fragile Watermarking Scheme Based on Scramble Encryption

Author

He, Hongjie ; Zhang, Jiashu ; Chen, Fan

Author_Institution

Sichuan Key Lab. of Signal & Inf. Process., Southwest Jiaotong Univ., Chengdu

fYear

2007

fDate

14-17 Sept. 2007

Firstpage

216

Lastpage

220

Abstract

This paper presents a new block-wise fragile watermarking scheme based on scramble encryption to improve security. In the proposed algorithm, the watermark derived from a block is not embedded in the least significant bit (LSB) of itself; rather, it is randomly distributed onto the LSB of whole host image by scramble encryption. In the verification stages, the predefined threshold is used to localize and discriminate the various modifications, and its performance of tamper detection is discussed from the viewpoint of probability theory. Theoretical analysis and experimental results are given to validate the effectiveness of our method.

Keywords

cryptography; image coding; image segmentation; probability; watermarking; block-wise fragile watermarking scheme; data security; image coding; image threshold; least significant bit; probability theory; scramble encryption; tamper detection; Cryptography; Grid computing; Helium; Information processing; Information security; National security; Pixel; Signal processing; Vector quantization; Watermarking;

fLanguage

English

Publisher

ieee

Conference_Titel

Bio-Inspired Computing: Theories and Applications, 2007. BIC-TA 2007. Second International Conference on

Conference_Location

Zhengzhou

Print_ISBN

978-1-4244-4105-1

Electronic_ISBN

978-1-4244-4106-8

Type

conf

DOI

10.1109/BICTA.2007.4806454

Filename

4806454