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VARIABLE LEAST SIGNIFICANT BITS GRAYSCALE IMAGE STEGNOGRAPHY

Author(s)
S. Khan University of Engineering and Technology Peshawar, Pakistan
M. H. Yousaf University of Engineering and Technology Taxila,Pakistan
M. Wahid University of Engineering and Technology Peshawar,Pakistan
Abstract
This work presented a leading and more secured least significant bits stegnography technique having variable information hiding capacity and signal to noise ratio (SNR). Hiding capacity was enhanced by sacrificing signal to noise ratio (SNR) and vice versa. A give and take was made between the capacity and SNR depending on the situation it was used in. The presented stegnography technique offered a very large key size, to extract covered information, in addition to basic purpose of stegnography. The key size was directly related to cover image size and the number of bits variation used for information hiding. The key was kept secret and shared with the intended party only.
Publication Details
Page(s) 281-287
DOI DOI not available
Published Journal: Pakistan Journal of Science, Volume: 67, Issue: 3, Year: 2015

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Keywords
Image Processing, Stegnography, Steganalysis, Key size, Cover media
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