An improved section-wise exploiting modification direction method
Signal Processing
Data hiding by an improved exploiting modification direction
Multimedia Tools and Applications
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X. Zhang and S. Wang proposed an Exploiting ModificationDirection (EMD) method that fully exploits modificationdirections. Modifications in different directions wereused to represent different secret data. In 5-ary notational system, only one secret digit is embedded for each twopixel. This paper proposes an improved method for EMD which can hide more secret data while maintaining a high PSNR value. The proposed method could embed on everypixel for cover data. The experimental results demonstratethat the proposed method has a high capacity and goodquality.