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An affine symmetric image model and its applications

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Figure

Fig. 1.Example of local affine symmetries within a natural image
Fig. 2.Texture perception and self-similarity relations. The texton as a directional pattern descriptor and affine transforms enable the effective modelling ofstructural texture.
Fig. 4.Comparative evaluation of the spectral filtering on reptile.The polar-gaussian spectrum model achieves the best noise suppressionwhile maintaining the structural integrity of the texture (top to bottom :reconstruction and spectral model, left to right : Noisy spectrum, Polar contourmodel, Gaussian mixture model and Polar Gaussian model
Fig. 5.Noise robustness test for polar contour (from left to right : source, polar contour, Fourier description, polar contour at 15 dB and Fourierdescription at 15 dB)
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