Reversible Fragile Watermarking for E-Learning Media

Authors:
Yu-Chiang Li;Cheng-Jung Tsai;Wei-Cheng Wu
Affiliations:
Dept. Computer Science & Information Engineering, Southern Taiwan University, Taiwan;Dept. Information Management, Chia Nan University of Pharmacy & Science, Taiwan, R.O.C.;Dept. Computer Science & Information Engineering, Southern Taiwan University, Taiwan
Venue:
PCM '08 Proceedings of the 9th Pacific Rim Conference on Multimedia: Advances in Multimedia Information Processing
Year:
2008

Citing 6
Cited 0

Information Hiding Techniques for Steganography and Digital Watermarking

Information Hiding Techniques for Steganography and Digital Watermarking
Fragile image watermarking using a gradient image for improved localization and security

Pattern Recognition Letters
A watermarking-based image ownership and tampering authentication scheme

Pattern Recognition Letters
Hiding Data Reversibly in an Image via Increasing Differences between Two Neighboring Pixels

IEICE - Transactions on Information and Systems
Reversible data embedding using a difference expansion

IEEE Transactions on Circuits and Systems for Video Technology
Reversible data hiding

IEEE Transactions on Circuits and Systems for Video Technology

Quantified Score

Hi-index	0.00

Visualization

Abstract

Fragile watermarking techniques are widely applied to protect the ownership of digital media. For learning materials, high-quality images can enhance learning efficiency. This study presents a reversible fragile watermarking scheme with two-level blocks for e-Learning media based on histogram shifting techniques. The method can validate the integrity of the protected image while maintaining the high quality of the protected image. Experimental results reveal that each test-marked image maintained its high image quality. Furthermore, the proposed method can detect and locate the blocks that have been tampered with.