J4

• 计算机科学 • Previous Articles     Next Articles

An Adaptive Detection Algorithm for Blind WatermarkBased on Generalized Gaussian Distribution

WANG Taiyue, LI Hongwei   

  1. School of Mathematics and Physics, China University of Geosciences, Wuhan 430074, China
  • Received:2006-04-30 Revised:1900-01-01 Online:2007-03-26 Published:2007-03-26
  • Contact: LI Hongwei

Abstract: Applying generalized Gaussian distribution to statistical model of the Alternating current coefficientof discrete cosine transform, an adaptive blind watermark detection algorithm is presented on the basis of sign detector and linear correlate detector and its probability efficiency is deduced. The experimental results show that the performance of the new detector is better than that of linear correlate detector.

Key words: generalized Gaussian distribution, blind image watermarking, asymptotic relative efficiency

CLC Number: 

  • TP391