Blind image watermarking algorithm based on neighboring mean value relationship
Liqin Liu · Telecommunications for Electric Power System · 2008
This paper puts forward a blind image watermarking algorithm based on neighboring mean value relationship.In this algorithm,the watermark is random disposed before embedded into the original image to improve security,then a 2-level DWT decomposition of the original image is performed and the perceptual significant coefficients are selected from LL sub-band to be the embedded domain.Finally,the watermark is embedded into the chosen positions repetitively according to the mean value of neighboring symbol.The experimental results show that this algorithm has the characteristics of large embedded capacity and good transparency,and is robust to the common image processing such as filter,JPEG compression,noising,image clipping and etc.