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Recently, the example-based super-resolution method has been extensively studied due to its vivid perception. However, this kind of method directly transfers the high-frequency details of the examples to the low-resolution image, incurring false structures and over-sharpness around the texture regions. In this paper, the problem in the example-based method is investigated from an analytic discussion...
In this paper, we propose a single image super-resolution and enhancement algorithm using local fractal analysis. If we treat the pixels of a natural image as a fractal set, the image gradient can then be regarded as a measure of the fractal set. According to the scale invariance (a special case of bi-Lipschitz invariance) feature of fractal dimension, we will be able to estimate the gradient of a...
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