CT based encryption 1. Open contourlet 5 and run aaa.m for image decomposition and for denoising 2. Open tsss and A_hidetext.m and set break point at line 109 and run 3. After selecting image ind text press F5 4. Now run H_finalextraction.m to get extracted text.

watermarking\contourlet5\aaa.asv
............\...........\aaa.m
............\...........\backsamp.m
............\...........\dctext
............\...........\dfbdec_l.m
............\...........\dfbrec_l.m
............\...........\dup.m
............\...........\extend2.m
............\...........\fbdec_l.m
............\...........\fbrec_l.m
............\...........\ldfilter.m
............\...........\lpdec.m
............\...........\lprec.m
............\...........\opt.png
............\...........\optwithtxt.png
............\...........\pdfb2vec.m
............\...........\pdfbdec.asv
............\...........\pdfbdec.m
............\...........\pdfbrec.m
............\...........\peppers.png
............\...........\pfilters.m
............\...........\ppdec.m
............\...........\pprec.m
............\...........\qpdec.m
............\...........\qprec.m
............\...........\rebacksamp.m
............\...........\resamp.m
............\...........\resampc.c
............\...........\resampc.dll
............\...........\resampc.mexglx
............\...........\resampc.mexlx
............\...........\resampc.mexmac
............\...........\resampc.mexsol
............\...........\sefilter2.m
............\...........\Thumbs.db
............\...........\vec2pdfb.m
............\...........\说明.txt
............\tsss\A_hidetext.m
............\....\A_hidetext_1.m
............\....\B_encrypt.m
............\....\C_calfn.m
............\....\dctext
............\....\D_randnum.m
............\....\E_keyexp.m
............\....\F_dalfn.m
............\....\G_decrypt.m
............\....\htext.mat
............\....\H_finalextraction.m
............\....\H_finalextraction_1.m
............\....\nbn.m
............\....\New Text Document.txt
............\....\optwithtxt.png
............\contourlet5
............\tsss
watermarking

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