Description: Steganography is an important part of Information Hiding. This paper analyses LSB Steganography arithmetic, points out the reason for the change of picture’s statistical characteristic after using LSB Steganography arithmetic. This arithmetic records the statistical characteristic of the part of picture writing secret information. If the secret byte is equal to the host pixel’s last byte, then do nothing. Otherwise, the host pixel’s last byte will be changed from i to i+1 or from i to i-1 accord...
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