Color Digital Watermarking Based on Integer Lifting Wavelet Transform and Visual Masking

Watermark is constructed by utilizing still image compression technique,performing the integer lifting wavelet transform,and quantizing the perceptually significant wavelet coefficients.The proposed algorithm allows to extract watermark without the help of original image.Experimental results show that the presented scheme is invisible and robust against various signal processing such as cropping,compression,filtering,noise adding,image enhancement,and mosaic.