A Novel LSB Matching Algorithm Based on Information Pre-Processing

Yongjin Hu, Xiyan Li and Jun Ma
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Yongjin Hu: Department of Cryptogram Engineering, Information Engineering University, Zhengzhou 450001, China
Xiyan Li: Department of Cryptogram Engineering, Information Engineering University, Zhengzhou 450001, China
Jun Ma: Department of Cryptogram Engineering, Information Engineering University, Zhengzhou 450001, China

Mathematics, 2021, vol. 10, issue 1, 1-16

Abstract: This paper analyzes random bits and scanned documents, two forms of secret data. The secret data were pre-processed by halftone, quadtree, and S-Box transformations, and the size of the scanned document was reduced by 8.11 times. A novel LSB matching algorithm with low distortion was proposed for the embedding step. The golden ratio was firstly applied to find the optimal embedding position and was used to design the matching function. Both theory and experiment have demonstrated that our study presented a good trade-off between high capacity and low distortion and is superior to other related schemes.

Keywords: data hiding; halftone; quadtree; LSB matching; golden ratio (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2021
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