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HETEROPTICS ANALYSIS DEVICE, HETEROPTICALLY-ALTERED IMAGE GENERATING DEVICE FOR GENERATING HETEROPTICS TO CREATE PERCEPTION APPROXIMATING ORIGINAL IMAGE, HETEROPTICS ANALYSIS METHOD, METHOD FOR GENERATING HETEROPTICALLY-ALTERED IMAGE TO CREATE PERCEPTION APPROXIMATING ORIGINAL IMAGE, AND PROGRAM
HETEROPTICS ANALYSIS DEVICE, HETEROPTICALLY-ALTERED IMAGE GENERATING DEVICE FOR GENERATING HETEROPTICS TO CREATE PERCEPTION APPROXIMATING ORIGINAL IMAGE, HETEROPTICS ANALYSIS METHOD, METHOD FOR GENERATING HETEROPTICALLY-ALTERED IMAGE TO CREATE PERCEPTION APPROXIMATING ORIGINAL IMAGE, AND PROGRAM
According to the present invention, multiresolution decomposition is performed on a color component of image data by using a wavelet frame with orientation selectivity or a filter bank with orientation selectivity and subband signals are obtained; and when reconstructing an image by summing the obtained subband signals, coefficient processing is performed, between a decomposition phase and a synthesis phase in the multiresolution decomposition, on decomposition detail coefficients that are output from the decomposition phase such that the larger the energy of the decomposition detail coefficients is, the more small values are further reduced, and the smaller the energy of the decomposition detail coefficients is, the more small values are increased, or vise versa.
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