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Anyone can help with designing exponentially increasing or decreasing image filter? the filtered image looks right but the amplitudes are wrong !! s.*rand(8); %signal [f1 f2] = freqspace(8,'meshgrid'); r = sqrt(f1.^2 + f2.^2); F=exp(r.*30); FS=S.*F; fss(ifft2(FS)); %filtered imagesc(fs), colorbar |