Earticle

초록

영어

In this paper, a novel scheme is proposed for watermarking lossy compressed images just before transmission and authenticating them once they are received, away from the core of the compression and de-compression processes. The scheme is inserted into the Joint Photographic Expert Group (JPEG) structure that is encoded using the Discrete Cosine Transform (DCT) at specified locations. The watermark information is extracted from and embedded into specified DCT coefficients, following novel criteria. The scheme is robust to lossy compression; though it is fragile, exposing any slight changes of the probe images. The scheme is also blind, needs no prior information about the original image or the watermark information to authenticate the received image. Experimentally, if the received watermarked data is not manipulated, the proposed scheme verifies them as ‘authenticated’. On the other side, if geometrical or image processing attacks are applied to the watermarked images, they are then verified successfully as ‘not authenticated’. The proposed scheme is further evaluated and compared to similar authentication schemes. The noise added to the original image due to embedding the watermark information is 0.063 dB (decibel), overcoming all results in the reviewed literature.

목차

Abstract
 1. Introduction
 2. Authenticating Lossy Compressed Images
 3. The Proposed Scheme
  3.1. The Propose Scheme: Watermarking
  3.2. The Proposed Scheme: Authenticating
 4. Developing the Proposed Scheme
  4.1. The Proposed Scheme: Evaluation
  4.2. The Proposed Scheme: Comparable Results
 5. Conclusion
 References

키워드

저자

• Mona A. M. Fouad [ Computers & Systems Department National Telecommunication Institute, Cairo, Egypt ]
• Ahmed Mokhtar A. Mansour [ Nile Innovations, Cairo Egypt ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Security and Its Applications

• 간기

  격월간

• pISSN

  1738-9976

• 수록기간

  2008~2016

• 등재여부

  SCOPUS

• 십진분류

  KDC 505 DDC 605