📄 filters_sym.m
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function [af, sf] = filters_sym% [af, sf] = filters_sym;% Non-tight frame symmetric filters with 4 vanishing moments% af : analysis filters% sf : synthesis filtersaf{1} = [ 0.02722186296669 0.01121654966880 -0.11270921793626 0.09607810395615 0.68529948253117 0.68529948253117 0.09607810395615 -0.11270921793626 0.01121654966880 0.02722186296669 ];af{2} = [ 0.04488939651608 0.00567077289237 -0.28634869777356 0.23578852836512 0.23578852836512 -0.28634869777356 0.00567077289237 0.04488939651608 ];af{3} = [ 0.02767057807905 0.00715884384190 -0.27767057807905 0.48568231231620 -0.27767057807905 0.00715884384190 0.02767057807905 ];sf{1} = [ -0.03923740398231 -0.07351803812277 0.18173346513849 0.63812875815314 0.63812875815314 0.18173346513849 -0.07351803812277 -0.03923740398231 ];sf{2} = [ 0.02379437723099 0.03778447272064 -0.07053788812010 -0.25303694427344 0.26199598244191 0.26199598244191 -0.25303694427344 -0.07053788812010 0.03778447272064 0.02379437723099 ];sf{3} = [ 0.01102889070037 0.01920442192095 -0.02002440664340 -0.26920442192095 0.51799103188605 -0.26920442192095 -0.02002440664340 0.01920442192095 0.01102889070037 ];
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