How to extend the use of the discrete orthogonal stockwell transform to image watermarking
Hana Ouazzane, Hela Mahersia, Kamel Hamrouni · 2017
In this paper, we explore the use of the discrete orthogonal Stockwell transform (DOST) in image watermarking by proposing a blind medical image watermarking (MIW) method based on multi-resolution representation that proceeds by embedding the watermark within the high frequency subbands of the 2D DOST representation of the cover image. Experimental results show that the proposed method improved the transparency of watermarking artifacts in comparison with other works and achieved a good compromise between fidelity and capacity.