LIU Jiu-wen, PAN Feng, LI Jun. Steganography based on edge detection and minimum error replacement[J]. , 2015,30(1): 151-156 DOI: 10.3788/YJYXS20153001.0151.
Steganography based on edge detection and minimum error replacement
In order to realize a image steganography with a high hiding capacity and undetectability
based on the fact that the changes in image edges are insensitive to human eyes
a novel adaptive algorithm employing multiple edge detection and Minimum Error Replacement (MER) is presented. By Canny operator
large numbers of edge pixels are picked out and the secret information can be embeded into the edge pixels and common pixels to a certain proportion. To compensate for the resulting decrease in the Peak Signal to Noise Ratio (PSNR)
MER method is used. Experimental results indicate that when the Baboon is chosen as cover image and the proportion of embedding the secret information is 4:1
the hiding capacity is 525 612 bit and PSNR is 41.3 dB. This algorithm not only has a high hiding capacity and good visual qualities
but also easy to carry out.
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references
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