Multiple-watermarking scheme based on improved chaotic maps

作者：Behnia S^*; Teshnehlab M; Ayubi P

来源：Communications in Nonlinear Science & Numerical Simulation, 2010, 15(9): 2469-2478.

DOI：10.1016/j.cnsns.2009.09.042

• Pair-coupled maps
• Pseudo random sequence
• Ergodic theory
• Robustness
• Digital signature image
• Key space
• security

In this letter a new watermarking scheme for color image is proposed based on a family of the pair-coupled maps. Pair-coupled maps are employed to improve the security of watermarked image, and to encrypt the embedding position of the host image. Another map is also used to determine the pixel bit of host image for the watermark embedding. The purpose of this algorithm is to improve the shortcoming of watermarking such as small key space and low security. Due to the sensitivity to the initial conditions of the introduced pair-coupled maps, the security of the scheme is greatly improved.

• 出版日期2010-9