A Semi-Fragile Watermarking Algorithm using Adaptive Least Significant Bit Substitution
نویسندگان
چکیده
منابع مشابه
Image Watermarking Using LSB (Least Significant Bit)
With the rapid development and wide use of Internet, information transmission faces a big challenge of security. People need a safe and secured way to transmit information. Digital watermarking is a technique of data hiding, which provide security of data. This paper presents a watermarking technique which least significant bits (LSB), its steps and its process with matlab images.
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In this paper, we introduce a new digital watermarking algorithm using least significant bit (LSB). LSB is used because of its little effect on the image. This new algorithm is using LSB by inversing the binary values of the watermark text and shifting the watermark according to the odd or even number of pixel coordinates of image before embedding the watermark. The proposed algorithm is flexib...
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Security is the most challenging aspects in the World Wide Web. In present time information sharing and transfer has increased exponentially. So to find out best solution this is providing necessary protection of our data against malicious attacks from intruders. Cryptography and Steganography are the two major techniques for secret communication. Cryptography converts information from its orig...
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Security of transferring data through channels has lots of concern especially if the transferred data is important. In stereo images, the scene is reconstructed from pair of images; the resulting is the 3D information which in some applications needs to be transferred through insecure channel. The security is important to protect the data from eavesdropping. We have proposed novel technique to ...
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In this paper new algorithm proposed for digital watermarking using Least Significant Bit (LSB) .LSB already used but there is a slightly effect on the image. The above algorithm is using LSB & second LSB bit. Here we used binary value of watermark text in LSB, and in place of second LSB, the inverse of their correspond LSB bit. The proposed algorithm is flexible depending on the length of wate...
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ژورنال
عنوان ژورنال: Information Technology Journal
سال: 2009
ISSN: 1812-5638
DOI: 10.3923/itj.2010.20.26