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  4. Vol 3, Issue 1, 2022

Frequency Domain Digital Watermarking Algorithm Based on Arnold Transform and Quaternion Fourier Transform

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DOI: 10.23977/autml.2022.030109 | Downloads: 7 | Views: 534

Author(s)

Yongqiang Ma 1, Wei Sun 1, Peifang Zhang 1, Shunli Wang 1

Affiliation(s)

1 School of Computer Science, Jining Normal University, Wulanchabu, 012000, China

Corresponding Author

Yongqiang Ma

ABSTRACT

In recent years, with the advancement of Internet technology and the rapid popularization of personal mobile terminals, while the dissemination of digital multimedia products such as images and videos has been facilitated, the risk of tampering and forgery of original data has also increased. The resulting problems of data content security and copyright authentication are becoming more and more serious. DW technology provides a solution to this information security problem. This paper mainly studies a frequency-domain digital watermarking algorithm (DWA) based on Arnold transform and quaternion Fourier transform. The advantage is that the three color channels of the image can be represented as a whole, and the frequency domain information of the image can be obtained. Using cat face transform and Fourier transform, the watermark information is embedded into the host's frequency domain information. The inverse Fourier transform is performed on the host frequency domain image embedded with the watermark information, so that a color image embedded with the secret information is obtained, thereby realizing information hiding. Each step here is reversible, and the process of extracting the watermark is the reverse of the above process. In this paper, the problem of whether the real part of the inverse Fourier transform of quaternion is zero is discussed in detail, and the practicability of the algorithm is verified through a series of data analysis. Through the comparison of experimental data, it is found that the average visual quality score of 0.9731 is higher than the average of 0.9402 of the traditional algorithm under the premise of using the text algorithm, which means that the frequency domain DW based on Arnold transform and quaternion Fourier transform Algorithms are better than other algorithms.

KEYWORDS

Arnold Transform, Quaternion, Fourier Transform, Digital Watermarking Algorithm

CITE THIS PAPER

Yongqiang Ma, Wei Sun, Peifang Zhang, Shunli Wang, Frequency Domain Digital Watermarking Algorithm Based on Arnold Transform and Quaternion Fourier Transform. Automation and Machine Learning (2022) Vol. 3: 58-64. DOI: http://dx.doi.org/10.23977/autml.2022.030109.

REFERENCES

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