1. 1. Lei Pei, “Research on Digital Image Watermarking Algorithm Based on Scrambling and Singular Value Decomposition”, Hindawi Journal of Mathematics Volume 2022, Article ID 4656010, 10 pages, doi.org/10.1155/2022/4656010
   2. A. K. Singh, S. Thakur, Alireza Jolfaei, Gautam Srivastava, “Joint Encryption and Compression-Based Watermarking Technique for Security of Digital Documents”, ACM Transactions on Internet Technology, Vol. 21, No. 1, Article 18, 2021, doi.org/10.1145/3414474
   3. Sowmya S, Sahana Karanth , Sharath Kumar, “Protection of data using image watermarking technique”, Global Transitions Proceedings 2 (2021) 386–391, Elsevier B.V, doi: 10.1016/j.gltp.2021.08. 035
   4.  Mahbuba Begum and Mohammad Shorif Uddin, “Analysis of Digital Image Watermarking Techniques through Hybrid Methods”, Hindawi, Advances in Multimedia Volume 2020, Article ID 7912690, 12 pages, doi.org/10.1155/2020/7912690
   5. Kamal Nayan Kaur, Divya, Ishu Gupta and Ashutosh Kumar Singh, “Digital Image Watermarking Using (2, 2) Visual Cryptography with DWT-SVD Based Watermarking”, Springer Nature Singapore Pte Ltd. 2019, doi.org/10.1007/ 978-981-10-8055-5_8
   6. Sarita P. Ambadekar, Jayshree Jain and Jayshree Khanapuri, “Digital Image Watermarking Through Encryption and DWT for Copyright Protection”, Springer Nature Singapore Pte Ltd. 2019, doi. org/10.1007/978-981-10-8863-6_19
   7. Nazir A. Loan, Nasir N. Hurrah, Shabir A. Parah, Jeon W. Lee, Javaid A. Sheikh, “ Secure and Robust Digital Image Watermarking using Coefficient Differencing and Chaotic Encryption”, Information Security Solutions for Telemedicine Applications, IEEE ACCES, Volume 6, 2018, doi:10.1109/ ACCESS.2018.2808172
   8. A.S.Kapse, Sharayu Belokar, Yogita Gorde, Radha Rane, Shrutika Yewtkar, “Digital Image Security Using Digital Watermarking”, International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056, Volume: 05 Issue: 03, 2018
   9. Mirza Abdur Razzaq, Mirza Adnan Baig, Ashfaque Ahmed Memon, Riaz Ahmed Shaikh, “ Digital Image Security: Fusion of Encryption, Steganography and Watermarking”, (IJACSA) International Journal of Advanced Computer Science and Applications, Vol. 8, No. 5, 2017
   10. Khalil Shekaramiz, Alireza Naghsh, Najafabad, “Embedding and Extracting Two Separate Images Signal in Salt & Pepper Noises in Digital Images based on Watermarking”, 3rd International Conference on Pattern Recognition and Image Analysis (IPRIA 2017) April 19-20, 2017
   11. Mohammad Shahab Goli, Alireza Naghsh, “Introducing a New Method Robust Against Crop Attack In Digital Image Watermarking Using Two-Step Sudoku”, 3rd International Conference on Pattern Recognition and Image Analysis (IPRIA 2017) April 19-20, 2017, 978-1-5090-6454-0/17
   12. R. Surya Prakasa Rao, Dr. P. Rajesh Kumar, “An Efficient Genetic Algorithm Based Gray scale Digital Image watermarking for Improving the Robustness and Imperceptibility”, International Conference on Electrical, Electronics, and Optimization Techniques (ICEEOT) – 2016, 978-1-4673-9939-5/16
   13. Lukman Çerkezi, Gökçen Çetinel, “RDWT and SVD Based Secure Digital Image Watermarking Using ACM”, 978-1-5090-1679-2/16, 2016 IEEE
   14. Madhuri Rajawat, D S Tomar, “A Secure Watermarking and Tampering detection technique on RGB Image using 2 Level DWT”, 2015 Fifth International Conference on Communication Systems and Network Technologies, 978-1- 4799-1797-6/15, DOI 10.1109/CSNT.2015.245
   15. Asna Furqan, Munish Kumar, “Study and Analysis of Robust DWT-SVD Domain Based Digital Image Watermarking Technique Using MATLAB”, 2015 IEEE International Conference on Computational Intelligence & Communication Technology, 978-1-4799-6023-1/15, DOI 10.1109/CICT. 2015.74