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High-payload image steganography using two-way block matching

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2 Author(s)
Ran-Zan Wang ; Dept. of Comput. & Commun. Eng., Ming Chuan Univ., Taiwan, Taiwan ; Yeh-Shun Chen

This letter presents a novel image steganography method that utilizes a two-way block-matching procedure to search for the highest similarity block for each block of the important image. The bases and indexes obtained together with some not-well-matched blocks are recorded in the least significant bits of the cover image using a hop scheme. The method exhibits a high data payload, which reduces the storage and transmission-time requirements and also provides a method that prevents an observer from selectively blocking the transmission of the important image.

Published in:

Signal Processing Letters, IEEE  (Volume:13 ,  Issue: 3 )