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A novel image perceptual hashing method is proposed on the intermediate hashing stage. It first uses the iterative geometric techniques to get main geometric features. Then, by the observation that the distances of feature points are invariant in the polar coordinate under arbitrary rotation, a novel processing method is proposed to arrange the two-dimensional distribution to a one-dimensional feature...
A novel image perceptual hashing algorithm is proposed on the intermediate hashing stage. It first uses an iterative geometric technique to extract significant geometry preserving feature points. Then, the fuzzy distance matching method is proposed based on the observation that the distances of feature points are invariant in the polar coordinate under arbitrary rotation. It is verified that the proposed...
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