理想低通滤波器.txt

典型低通滤波器;%0.1 Hd(r>0.1) = 0; Y=fft2(double(I)); Y=fftshift(Y); Ya=Y.*Hd; ̈ Ya=ifftshift(Ya); Ia01=ifft2(Ya); %0.2 Hd(r>0.2) = 0; ÷ Y=fft2(double(I)); Y=fftshift(Y); Ya=Y.*Hd; ̈ Ya=ifftshift(Ya); Ia02=ifft2(Ya);