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Variable Length Least Significant Bits Embedding | ||
| Basrah Journal for Engineering Science | ||
| Article 1, Volume 10, Issue 1, 2010, Pages 66-75 PDF (0 K) | ||
| Author | ||
| Abbas A. Jasim | ||
| Abstract | ||
| A novel hiding system is proposed in this work which is based on Least Significant Bits (LSB) embedding of information such as speech in gray scale images. The proposed hiding algorithm embeds the secrete information message bits in the least significant bits of the cover image pixels such that the number of secrete information bits to the embedded in least significant bits of cover image pixel is variable and determined randomly. So that cover image pixel may contain no secret information bit, one bit, two bits, or three bits according to the pseudo random number generator that generates integer numbers randomly between 0 and 3. The resulting image (the cover image within which the secret information is hidden) is called stego_image. Stego image is closely related to the cover image and does not show any details of the secret information. It ensures that the eavedroppers will not have any suspicion that message bits are hidden in the image aix! standard steganography detection methods cannot estimatc the locations in which the secret message bits are embedded and cannot estimate the locations in which the secrete information bits are hidden nor the number of bits embedded in cover image . The proposed system achieves perfect reconstruction of the secret message. | ||
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