Gray Scale Image Watermarking using LSB Modification

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Jobin Abraham


This paper proposes a method for watermarking gray scale images in spatial domain by modifying the least significant bits in the image. After the embedding process we get the watermarked image with hidden information that proclaims its ownership details. Data to be embedded is integrated in the image selectively using a rule that sets or resets the LSB’s of the image pixels. Since in this method, the pixels are modified slightly the watermarking remains imperceptible and watermarked image is nearly indistinguishable from the original image.




Keywords: digital image watermarking, LSB modification, watermark, embedding, extraction, psnr.


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