DWT-SVD blind digital watermarking algorithm based on the mix of time-domain
Zhang Feng-jua · Electronic Design Engineering · 2015
A new blind digital watermarking algorithm based on the mix of time-domain is proposed.This algorithm changes the traditional watermark embedding process.Firstly,the host image is separated into different blocks,and the perfect signals are used to finish the mix of time-domain on the host image,which changes the distribution of image information.Then,the embedding process is completed on frequency-domain,which is discrete wavelet transform with singular value decomposition,and restore the mix of time-domain to get the image with watermark.Attack tests and comparison with traditional DWT-SVD image watermarking algorithm are carried out.The results show that the image watermarking algorithm based on the mix of time-domain has good imperceptibility and robustness.