A Modified Non-separable Haar Wavelet Transform with Rabin-p Cryptosystem for Colour Image Watermarking

• Published in: 2022 IEEE 10th Conference on Systems, Process and Control, ICSPC 2022 - Proceedings
• Main Author: Razak M.K.A.; Abdullah K.; Halim S.A.
• Format: Conference paper
• Language: English
• Published: Institute of Electrical and Electronics Engineers Inc. 2022
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85146684262&doi=10.1109%2fICSPC55597.2022.10001775&partnerID=40&md5=0018f6ba36b3e721aa79aa785a376c38

Digital image watermarking is a tried-and-true method of securing image media, but there is a need to constantly perfect the technique to keep up with the technological progress. In this paper, a non-blind image watermarking technique is used to embed a robust and imperceptible watermark, designed with a focus on security and efficiency. Images are transformed from spatial domain to transform domain using modified non-separable Haar wavelet transform and singular value decomposition, and the watermark is encrypted by Arnold's cat map scrambling and Rabin-p cryptosystem. The modified non-separable Haar wavelet transform is an alternative to the popular and widely used discrete wavelet transform, which produces a similar transform but in a much more efficient way. On the other hand, the watermark is secured by image scrambling and encryption of the scrambling parameters. A highly robust and imperceptible image watermarking technique is made while prioritizing efficiency and security. © 2022 IEEE.