LÜ Dong-mei, Li Guo-dong. Reversible watermarking algorithm based on ciphertext domain extension and DNA bidirectional coding[J]. 2020, 37(2): 44-50.DOI:
Reversible watermarking algorithm based on ciphertext domain extension and DNA bidirectional coding
Based on the comprehensive consideration of the robustness and embedding capacity of the reversible watermarking algorithm
A cryptographic domain reversible watermarking algorithm based on ciphertext domain extension is proposed. This algorithm not only ensures high robustness
but also makes the embedding capacity as high as 8.0625dB. Firstly
the two-dimensional carrier image and the two-dimensional watermark image are encrypted based on IWT and DNA bidirectional encoding. Then
the encrypted watermark is embedded into the encrypted carrier image based on the ciphertext domain extension
and finally
the two-dimensional carrier image is converted into a watermarked image. Three-dimensional image
the algorithm is completed.The SSIM evaluation index is used to analyze the restoration quality of the image. The SSIM value is 1 and the algorithm is completely reversible. The embedding capacity of the algorithm is 8.0625dB
which is much larger than other literatures. The robustness analysis shows that the algorithm is better. The algorithm achieves the complete reversibility of the watermark information in the ciphertext domain and the lossless recovery of the original image under the premise of ensuring the security of the original carrier content.
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references
TIAN J. Reversible Data Embedding Using a Difference Expansion[J]. IEEE Transactions on Circuits and Systems for Video Technology, 2003, 13(8): 890-896. DOI: 890
DRAGOI I-C, COLTUC D. Local-prediction-based difference expansion reversible watermarking[J]. IEEE Trans on Image Processing, 2014, 23(4):1779-1790. DOI: 1779
NI Z C, SHI Y Q, ANSARI N, et al. Reversible data hiding [J]. IEEE Transactions on Circuits Systems Video Technology, 2006, 16(3): 354-362. DOI: 354
ELIK M U, SHARMA G, TEKALP A M, et al. Lossless generalized-LSB data embedding[J]. IEEE Transactions on Image Process, 2005, 14(2):253-266. DOI: 253
AL-QERSHI O M, KHOO B E. Two-dimensional difference expansion (2D-DE) scheme with a characteristics-based threshold[J]. Signal Processing, 2013, 93(1):154-162. DOI: 154
LEI B, TAN E-L, CHEN S, et al. Reversible watermarking scheme for medical image based on differential evolution[J]. Expert Systems with Applications, 2014, 41 (7) : 3178-3188. DOI: 3178
FRIDRICH J, GOLJAN M, DU R. Lossless data embedding - new paradigm in digital watermarking[J]. EURASIP Journal on Applied Signal Processing, 2002(2):185-196. DOI: 185