Portable C-based digital watermarking algorithm code, need to install NetPGM package (used to access the pgm format images), and then to compile in linux below. NetPGM the image file input/output package. You can search online to get. We have 256 gray levels for, 512 × 512 size image was tested.

第05章\cmp_cox_sig.c
......\cmp_dct.c
......\cmp_dct8x8.c
......\dct.c
......\dct.h
......\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
第05章

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