Earticle

초록

영어

This paper presents a RST (rotation, scaling and translation) invariant reversible watermarking method for 2D vector maps. Firstly, the proposed algorithm selects two reference vertices to calculate the normalized quantization step. Then, for each vertex, the Euclidean distance between a reference vertex and the vertex is divided into equal segments using the normalized quantization step. According to the segment which the vertex is divided into, a watermark is embedded by moving the vertex within its corresponding segment in a revertible manner. This algorithm not only recovers the original content after watermark extraction, but also correctly extracts the embedded watermarks after RST transformations. In addition, to control the distortions introduced by watermark embedding, the embedding parameter is carefully selected. Theoretical analysis and experimental results show that the proposed scheme provides RST invariance property, and good reversibility, invisibility, computational complexity and data capacity.

목차

Abstract
 1. Introduction
 2. Wang and Wang’s Reversible Watermarking Scheme
 3. The Proposed Reversible Scheme
  3.1 Watermark Embedding Procedure
  3.2 Watermark Extraction and Data Recovery
 4. Results and Analysis
 5. Conclusions
 References

키워드

저자

• Nana Wang [ School of Computer Science and Technology, Jiangsu Normal University, Xuzhou 221116, P. R. China ]
• Xiangjun Zhao [ School of Computer Science and Technology, Jiangsu Normal University, Xuzhou 221116, P. R. China ]
• Chunli Xie [ School of Computer Science and Technology, Jiangsu Normal University, Xuzhou 221116, P. R. China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Multimedia and Ubiquitous Engineering

• 간기

  월간

• pISSN

  1975-0080

• 수록기간

  2008~2016

• 등재여부

  SCOPUS

• 십진분류

  KDC 505 DDC 605