Description: The wavelet transform domain image watermarking algorithm is a multi-scale image of the spatial frequency decomposition [13], to better match the human visual system (HVS Human Visual System). Because the wavelet transform has good frequency characteristics of the locality and multiresolution representation, and, the latest image compression standard- JPEG2000 and video MPEG-7 compression standards have adopted the wavelet transform,
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watermarkcleck door\dct2_recover_mod.m
...................\_copyright.gif
...................\_copyright_small.bmp
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...................\_lena_std_bw.bmp
...................\cdma_embed.m
...................\cdma_recover.m
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...................\dct2_recover.m
...................\_copyright.bmp
...................\dwt_embed.m
...................\dwt_recover.m
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...................\Hidden Bits A Survey of Techniques for Digital Watermarking.htm
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...................\lena.bmp
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...................\lsb_embed.m
...................\lsb_recover.m
...................\pn_period.m
...................\pn_test.m
...................\psnr.m
...................\test1.m
...................\cdma_watermarked.bmp
...................\test.jpg
...................\dct1_watermarked.bmp
...................\test2.m
...................\Hidden Bits A Survey of Techniques for Digital Watermarking_files\fig01.gif
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