This paper proposes a reversible data hiding method based on expanding difference between a pair of neighboring pixels. The proposed method adopts the relation among pixels in a block to determine whether a pair of pixels can be expanded. During the embedding process, the pixels used to determine the expanding status of pixels always remain unchanged and, later, they can be adopted by the decoder to identify the expanding status of a difference when extracting a message. As the expanding status is not saved in the location map, all of the embedding capacities can be used to embed user’s message. In addition, the embedding capacity can be finely tuned by a parameter which determines whether a difference value can be expanded. Experimental results show that both the capacity for embedding user’s message and the image quality are significantly improved, when compared with Tian’s study [IEEE Trans. Circuits Syst. Video Technol., 13(8), pp. 890-896, 2003].
Lossless Data Hiding Based on Difference Expansion without a Location Map
2008 Congress on Image and Signal Processing ; 2 ; 8-12
2008-05-01
1251955 byte
Conference paper
Electronic Resource
English
Lossless nibbled data embedding scheme based on difference expansion
British Library Online Contents | 2008
|Difference expansion and prediction for high bit-rate reversible data hiding
British Library Online Contents | 2012
|IWT Based Data Hiding in Encrypted Images
IEEE | 2018
|Lossless and Near-Lossless Image Compression Based on Multiresolution analysis
British Library Conference Proceedings | 2005
|