A recent survey on image watermarking techniques and its application in e-governance. - Chandan Kumar 009; Amit Kumar Singh 001; Pardeep Kumar 002 (Multim. Tools Appl., 2018)

SPIHT-based multiple image watermarking in NSCT domain. - Chandan Kumar 009; Amit Kumar Singh 001; Pardeep Kumar 002; Rajiv Singh; Siddharth Singh (Concurr. Comput. Pract. Exp., 2020)

Encryption-Then-Compression-Based Copyright Protection Scheme for E-Governance. - Amit Kumar Singh 001; Chandan Kumar 009 (IT Prof., 2020)

Dual watermarking: An approach for securing digital documents. - Chandan Kumar 009; Amit Kumar Singh 001; Pardeep Kumar 002 (Multim. Tools Appl., 2020)

Improved wavelet-based image watermarking through SPIHT. - Chandan Kumar 009; Amit Kumar Singh 001; Pardeep Kumar 002 (Multim. Tools Appl., 2020)

Fuzzy-based secure exchange of digital data using watermarking in NSCT-RDWT-SVD domain. - Om Prakash Singh; Chandan Kumar 009; Amit Kumar Singh 001; Maheshwari Prasad Singh; Hoon Ko (Concurr. Comput. Pract. Exp., 2023)

Hybrid optimization for secure and robust digital image watermarking with DWT, DCT and SPIHT. - Chandan Kumar 009 (Multim. Tools Appl., 2024)

Optimized and secure digital image watermarking technique using Henon mapping in redundant domain. - Chandan Kumar 009 (Multim. Tools Appl., 2024)

Recent security challenges and robust techniques in colour image watermarking. - Chandan Kumar 009; Dinesh Kumar (Int. J. Comput. Vis. Robotics, 2025)