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(1) Sclerous concrete materials possess the characteristics of imperceptibility, microcosmic and more micro-pores, even excellent high-performance cement possess so.

(2) This scheme enhanced the information imperceptibility and the resources section redundancies utilization rate, compared with other schemes of information hiding based on PE file.

(3) When we embed message, we must make a compromise between bits and imperceptibility .

(4) Experimental result show that the watermarking method based on SVD used to attack the image processing performs well in both imperceptibility and robustness.

(5) This watermark algorithm can contain the detection threshold into a predefined scope and attain quite good imperceptibility .

(6) Experimental results show that the proposed scheme can achieve high imperceptibility and satisfactory robustness against MP3 encoding.

(7) It has been proved by experiments that this algorithm is high imperceptibility , high capacity, and robust to affine transformation and JPEG lossy compression.

(8) By adjusting coefficient difference based on edge detection in wavelet transformation domain, integrative optimization of watermarking imperceptibility and robustness is implemented.

(9) Experimental results show that the proposed technique has good efficiency, security, imperceptibility, highly good robustness to common image processing operation and the JPEG lossy compression.

(10) The chaos map is introduced to improve the watermark imperceptibility . The experiment result shows that it has a good HVS and is robust.

(11) Then comparison to zero watermarking was made to proof the copyright. The result indicated this method is very good to solute the contradictory question of robustness and imperceptibility .

(12) Chaos map and singular value decomposition of matrix technology are introduced to improve the watermarking imperceptibility, security and robustness of watermark image.

(13) On the other hand, the algorithm employs adaptive coefficient to improve watermark's imperceptibility.

(14) The simulation results show that the information hiding technology based on channel coding has better imperceptibility and security.

(15) Methods After the dusts being injected in vivo , the imperceptibility changes in rats were observed and the fiber features were compared with statistics in rat by advanced microscope, SEM analysis.

(16) Hence, this scheme is powerful and possesses the adjustable threshold value to obtain the balance relationships between the imperceptibility and robustness.

(17) Digital watermarking is a new technical means to the copyright protection of image, and the robustness is incompatible with the imperceptibility .

(18) Experiments make it clear that the scheme adopted in this paper fully satisfy the requirements for imperceptibility, robustness and security. Sentencedict.com

(19) Our aim of product development is to provide as good products as "perfection and excellence with imperceptibility " for human beings by introducing modern design concept and creating for new changes.

(20) From the experiment results, it indicates that, after the watermarked MPEG-4 video suffer filtering, rotation, scaling and transcoding, the watermark possesses good imperceptibility and robustness.

(21) The experiments show that the algorithm can assure good imperceptibility for watermarked image and the watermark beseem to exact authentication for image, this watermark can be successfully erased.