A DIGITAL WATERMARKING SCHEME BASED ON ICA DETECTION
Ju Liu, Xingang Zhang, Jiande Sun, Miguel Angel Lagunas · 2003
The scheme proposed in this paper combines independent components analysis (ICA) with discrete wavelet transform (DWT) and discrete cosine transform (DCT). Firstly, the original image is decomposed by 2-D DWT and the detail sub-bands are reserved. Then, the approximate image is transformed by DCT and embedded with watermark. The watermark is detected through ICA. The simulation results demonstrate its good performance of the robustness and invisibility. The watermark detection is improved greatly compared to the traditional subtracting detection scheme.