Fft-based digital watermarking were embedded watermark repeated RBG three channels, each channel separately the fft transform domain amplitude spectrum round, four points for each round symmetrical repeat embedded 1bit watermark, then r steps into the election next larger circle embedded watermark information, the method has better robustne

watermarkfft\Debug\MainFrm.obj
............\.....\StdAfx.obj
............\.....\vc60.idb
............\.....\vc60.pdb
............\.....\watermarkfft.exe
............\.....\watermarkfft.ilk
............\.....\watermarkfft.obj
............\.....\watermarkfft.pch
............\.....\watermarkfft.pdb
............\.....\watermarkfft.res
............\.....\watermarkfftDoc.obj
............\.....\watermarkfftView.obj
............\MainFrm.cpp
............\MainFrm.h
............\ReadMe.txt
............\res\Toolbar.bmp
............\...\watermarkfft.ico
............\...\watermarkfft.rc2
............\...\watermarkfftDoc.ico
............\resource.h
............\StdAfx.cpp
............\StdAfx.h
............\watermarkfft.aps
............\watermarkfft.clw
............\watermarkfft.cpp
............\watermarkfft.dsp
............\watermarkfft.dsw
............\watermarkfft.h
............\watermarkfft.ncb
............\watermarkfft.opt
............\watermarkfft.plg
............\watermarkfft.rc
............\watermarkfftDoc.cpp
............\watermarkfftDoc.h
............\watermarkfftView.cpp
............\watermarkfftView.h
............\Debug
............\res
watermarkfft
............\Debug\key.bmp
............\.....\MainFrm.sbr
............\.....\StdAfx.sbr
............\.....\watermarkfft.bsc
............\.....\watermarkfft.sbr
............\.....\watermarkfftDoc.sbr
............\.....\watermarkfftView.sbr
............\key.bmp

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