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The Internet as a whole does not use secure links, thus information intransit may be vulnerable to interruption as well. The important of reducing achance of the information being detected during the transmission is being anissue in the real world now days. The Digital watermarking method provides forthe quick and inexpensive distribution of digital information over theInternet. This method provides new ways of ensuring the sufficient protectionof copyright holders in the intellectual property dispersion process. Theproperty of digital watermarking images allows insertion of additional data inthe image without altering the value of the image.In this paper investigate thefollowing relevant concepts and terminology, history of watermarks and theproperties of a watermarking system and applications. We are proposing edgedetection using Gabor Filters. In this paper we are proposed least significantbit (LSB) substitution method to encrypt the message in the watermark imagefile. The benefits of the LSB are its simplicity to embed the bits of themessage directly into the LSB plane of cover-image and many techniques usingthese methods. The LSB does not result in a human perceptible differencebecause the amplitude of the change is little therefore the human eye theresulting stego image will look identical to the cover image and this allowshigh perceptual transparency of the LSB. The spatial domain technique LSBsubstitution it would be able to use a pseudo-random number generator todetermine the pixels to be used for embedding based on a given key. We areusing DCT transform watermark algorithms based on robustness. The watermarkingrobustness have been calculated by the Peak Signal to Noise Ratio (PSNR) andNormalized cross correlation (NC) is used to quantify by the similarity betweenthe real watermark and after extracting watermark.

An Adaptive Watermarking Technique for the copyright of digital images and Digital Image Protection