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数字水印

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  • Update : 2012-11-26
  • Size : 33kb
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  • Author :圣****
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Introduction - If you have any usage issues, please Google them yourself
done to the original signal DCT algorithm : Cox Piva and others made the DCT technology classic. Cox using random number generator producing standard normal sequence information as a watermark image of the overall DCT, DC coefficient selection removed outside some lower frequency coefficient superposition watermark information Piva will be replaced by images of the entire IF part. The original signal block, before making the DCT algorithm : Wu Hsu and put images 8* 8 block, a binary sequence as watermarks Add DCT IF; Some scholars calculated whole image of DCT, a real sequence embedded IF DCT coefficients. IF the choice is a good one to minimize the embedded information to the subjective visual images; Meanwhile, try to avoid Compression right watermark information possible losses. There
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数字水印
........\cmp_cox_sig.c
........\cmp_cox_sig.dsp
........\cmp_cox_sig.dsw
........\cmp_cox_sig.ncb
........\cmp_cox_sig.opt
........\cmp_cox_sig.plg
........\cmp_dct.c
........\cmp_dct8x8.c
........\dct.c
........\dct.dsp
........\dct.dsw
........\dct.h
........\dct.ncb
........\dct.opt
........\dct.plg
........\Debug
........\gen_cox_sig.c
........\gray.c
........\gray.h
........\readme.txt
........\signature.c
........\signature.h
........\sort.c
........\sort.h
........\wm.c
........\wm.h
........\wm_cox_d.c
........\wm_cox_e.c
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