Multiresolution watermarking for images and video: a unified approach Conference Paper uri icon

abstract

  • This paper proposes a unified approach to digital watermarking of images and video based on the 2D and 3D discrete wavelet transforms. The hierarchical nature of the wavelet representation allows multiresolutional detection of the digital watermark, which is a Gaussian distributed random vector added to all the highpass bands in the wavelet domain. We show that, when subjected to distortion from compression or image halftoning, the corresponding watermark can still be correctly identified at each resolution (excluding the lowest one) in the wavelet domain. Computational saving from such a multiresolution watermarking framework is obvious, especially for the video case.

author list (cited authors)

  • Zhu, W., Xiong, Z., & Zhang, Y. Q.

complete list of authors

  • Zhu, W||Xiong, Z||Zhang, YQ

publication date

  • December 1998