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ON THE METHOD OF OPTIMAL SUBBAND FILTRATION

The paper presents the results of experimental studies of the effectiveness of the optimal subband method. This method allows to achieve the minimal level of energy leakage out of the subdomain of spatial frequencies selected for filtration. The experiments show that the energy of the input image, being out of the selected subdomain of spatial frequencies, affects in a greater degree the output sequence of frequency filters based on DFT than the results based on the optimal filtration method. This influence is evident both on the graphs of corresponding Fourier transforms, and on the images obtained as a result of filtering.

DOI: 10.18413/2518-1092-2016-1-1-58-64
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