نتایج جستجو برای: shearlet system

تعداد نتایج: 2231358  

Watermarking is an operation to hide important information. In this paper, a new watermarking algorithm using Shearlet transform and GWO optimization algorithm as well as SVD transform is presented. The results of this paper show the improvement of robustness and transparency of the new algorithm.

Journal: :DEStech Transactions on Engineering and Technology Research 2016

Journal: :IEEE Transactions on Geoscience and Remote Sensing 2015

Journal: :International Journal of Biomedical Imaging 2014

Journal: :Journal of Nonlinear Sciences and Applications 2016

2017
Kanghui Guo Demetrio Labate

One of the most remarkable properties of the continuous curvelet and shearlet transforms is their sensitivity to the directional regularity of functions and distributions. As a consequence of this property, these transforms can be used to characterize the geometry of edge singularities of functions and distributions by their asymptotic decay at fine scales. This ability is a major extension of ...

2014
Kanghui Guo Demetrio Labate

Several empirical results appeared in the literature during the last decade have shown that it is often possible to separate images and other multidimensional data into geometrically distinct constituents. A rigorous mathematical analysis of the geometric separation problem in the two-dimensional setting was recently introduced by Donoho and Kutyniok [6], who proposed a mathematical framework t...

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