Abstract
This paper proposes a method for hiding an important image in a cover image whose size is limited. In this method, in order to save space, a modified search-order coding (MSOC) technique first transforms the important image, then, a randomization procedure permutes the transformed image to further increase the security. Finally, a modulus function embeds the permuted code in a cover image; notably, in the modules function, the modulus base used for a pixel is determined according to the variance of its neighboring pixels. Experimental results show that the images are of high quality. Comparisons with reported methods are provided.
Original language | English |
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Pages (from-to) | 1215-1240 |
Number of pages | 26 |
Journal | International Journal of Pattern Recognition and Artificial Intelligence |
Volume | 22 |
Issue number | 6 |
DOIs | |
State | Published - 1 Sep 2008 |
Keywords
- Data hiding
- Modulus function
- Search-order coding
- Steganography