A Digital Watermark Algorithm Based on HVS and Spatial-Domain Techniques
Xiaoling Cao · Journal of Kunming University of Science and Technology · 2006
Based on the Discrete Cosine Transform(DCT),Discrete Wavelet Transform(DWT),still image compression coding technique,and Human Visual System(HVS),the 2-dimensional digital watermark(gray image),which has been compression-coding transformed,is embedded into the host image after DWT and DCT.Experimental results show that the proposed watermarking scheme is robust against various signal processing such as noise adding,JPEG compression,smooth filtering,cropping,and rotating transform.