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In this paper, we presented a novel image filtering algorithm (EdgeFilter) using image edge detection and preservation for image enhancement. The proposed algorithm firstly defines the region direction gradient to detect the image edge pixel with dynamic threshold control, and then it implements a modified hybrid filter method to each edge pixel and each smoothing pixel, which aims at preserving the...
To solve the hierarchical topology optimization issue in overlay network for multicast service, this paper proposed a hybrid clustering model (HCGA) combining k-means method with genetic algorithm. The hybrid model formulated the related issue as a multiple-objective optimization, and then modeled it as a weighted clustering problem. HCGA made fully use of genetic algorithm for better clustering performance...
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