Watermarking applications and their properties
ITCC '00 Proceedings of the The International Conference on Information Technology: Coding and Computing (ITCC'00)
Robust digital image watermarking method against geometrical attacks
Real-Time Imaging
An adjusted-purpose digital watermarking technique
Pattern Recognition
IEEE Journal on Selected Areas in Communications
Secure spread spectrum watermarking for multimedia
IEEE Transactions on Image Processing
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This paper proposes a new approach in digital watermarking applications that can be adapted for embedding either fragile or robust watermarking in a digital image in the spatial domain or in the frequency domain. The main objective of the proposed scheme is to explore the amount of texture or edge pixels belonging to the host image in order to insert more information while preserving the robustness of the scheme without degrading the visual quality of the watermarked image. The host image is divided into blocks and each block can be subdivided into sub-blocks according to its texture analysis. The number of sub-blocks that each block will be divided into depends on the amount of texture or edge pixels presented by it. The numerical results show that the proposed scheme is better in JPEG compression attacks, and far exceeds others in watermark size capacity.