An efficient separable reversible data hiding method based on bit pair difference at pixel level.
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| Title: | An efficient separable reversible data hiding method based on bit pair difference at pixel level. |
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| Authors: | Kumar, Sanjay1 (AUTHOR) skparsade@gmail.com, Walia, Gurjit Singh2 (AUTHOR), Gupta, Anjana1 (AUTHOR) |
| Source: | Imaging Science Journal. Jul2025, Vol. 73 Issue 5, p543-556. 14p. |
| Subjects: | Reversible data hiding (Computer science), Generating functions, Data extraction, Information retrieval, Base pairs |
| Abstract: | Reversible Data Hiding (RDH) in the encrypted domain has been extensively investigated because of its myriad of applications in different fields and security and privacy concerns of secret messages and covers. However, most of the methods mainly suffer due to low embedding capacity, communication overhead, security of secret messages and overflow/underflow issues. In order to address these issues, an efficient separable RDH method employing bit-pair differences has been proposed. Embedding at bit pairs level not only achieves high secret data embedding capacity but also enhances the security and privacy of the secret message and cover. The proposed method employs the average and floor function to generate the interpolated cover and hence, avoids the overflow/underflow problem. The proposed separable method supports blind data extraction from the marked cover thereby being computationally inexpensive. In this, secret messages and covers are recovered independently on the basis of available keys rather than sequence order. This method is computationally inexpensive as the embedding algorithm only consideres simple rules based data hiding and data retrieval is achieved through simple XOR operation which overcomes the communication overhead. The performance of the proposed method is compared with the state-of- the-art methods and results reveal significant improvements in the embedding capacity. THe maximum embedding capacity of 4 bits per pixel(bpp) with an average PSNR value of 34.99 dB is achieved irrespective of the cover. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | Reversible Data Hiding (RDH) in the encrypted domain has been extensively investigated because of its myriad of applications in different fields and security and privacy concerns of secret messages and covers. However, most of the methods mainly suffer due to low embedding capacity, communication overhead, security of secret messages and overflow/underflow issues. In order to address these issues, an efficient separable RDH method employing bit-pair differences has been proposed. Embedding at bit pairs level not only achieves high secret data embedding capacity but also enhances the security and privacy of the secret message and cover. The proposed method employs the average and floor function to generate the interpolated cover and hence, avoids the overflow/underflow problem. The proposed separable method supports blind data extraction from the marked cover thereby being computationally inexpensive. In this, secret messages and covers are recovered independently on the basis of available keys rather than sequence order. This method is computationally inexpensive as the embedding algorithm only consideres simple rules based data hiding and data retrieval is achieved through simple XOR operation which overcomes the communication overhead. The performance of the proposed method is compared with the state-of- the-art methods and results reveal significant improvements in the embedding capacity. THe maximum embedding capacity of 4 bits per pixel(bpp) with an average PSNR value of 34.99 dB is achieved irrespective of the cover. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 13682199 |
| DOI: | 10.1080/13682199.2024.2430874 |
