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2008
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A further study on steganalysis of LSB matching by calibration

9 years 4 months ago
A further study on steganalysis of LSB matching by calibration
In this paper, based on a careful investigation on the calibration (downsample) technique, we improve two detectors for detecting LSB matching: Calibrated HCF COM and Calibrated Adjacency HCF COM. Instead of using the COM (center of mass) of the HCF (histogram characteristic function), we consider the ratio of the histogram's DFT coefficients of the image to the corresponding coefficients of the downsampled image. Moreover, we propose to downsample only for non-oscillating pixels. With a same level of computational complexity, the new detectors thus obtained are better than the old ones, especially for uncompressed images.
Xiaolong Li, Tieyong Zeng, Bin Yang
Added 20 Oct 2009
Updated 20 Oct 2009
Type Conference
Year 2008
Where ICIP
Authors Xiaolong Li, Tieyong Zeng, Bin Yang
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