On the Amount of Embedded Information of Watermarking Methods Based on the Parallel Combinatorial Spread Spectrum Scheme

摘要

the maximum amounts of embedded informa- tion that is important in practical system design of two wa- termarking methods based on the parallel combinatorial spread spectrum (PC/SS) scheme are discussed in this paper. One ias a private watermarking method proposed in this paper an has a practical strong point to make the quality of the watermarked image to be constant in any images.