A novel Watermarking Technique Based on Hybrid Transforms

This paper proposed Anovel watermarking scheme using hybrid of  Dual Tree Complex Wavelet Transform and singular value decomposition . Image watermarking is to embed copyright data in image bit streams. Our proposed technique demonestrates  the effective and robust of image watermarking algorithms using a hybrid of two strong mathematical transforms; the 2-level Dual Tree Complex Wavelet Transform (DT-CWT) and Singular Value Decomposition (SVD). This technique shows high level of security and robustness against attacks. The algorithm was tested for imperceptibility and robustness and the results were compared with DWT-SVD-based technique, it is shown that the proposed watermarking schemes is considerably more robust and effective

Routing in intermittently powered IoT networks

Internet of Things (IoT) applications have evolved rapidly in the past few years with applications in various domains such as smart cities. Energy harvesting techniques help to extend the lifetime of these devices. These devices can only work intermittently during power cycles when energy is available, but this is not taken into account by routing protocols. This paper evaluates the standard routing protocol RPL in an intermittent energy harvesting scenario for an IoT network and concludes that RPL is unsuitable due to the large number of lost packets caused by the unavailability of the intermittent node