Filter High Pass Using Fourier Transform

Hi, I tried fourier’s transform with a few high pass filters, but the code I made was not showing the process. So, someone could help me check the code.

FFT_ihpf=getimage(handles.axes5);

[M, N]= size(FFT_ihpf);

ft_ihpf=fft2(double(FFT_ihpf));

ihpf=fftshift(ft_ihpf);

figure(1);

imshow(abs(ft_ihpf),[]);

figure(2);

imshow(abs(ihpf),[]);

ihpf_logshift=log(1+abs(ihpf));

% axes (handles.axes10);

figure(3); imshow(abs(ihpf_logshift),[]);

n=2;

D0=20;

% D0= str2double(get(handles.edit5, 'String'));

% D0 =D0/100;

% % u=0:(M-1);

% % v=0:(N-1);

% % idX = find (u > M/2);

% % u(idX) = u(idX) - M;

% % idY = find (v > N/2);

% % v(idY) = v(idY) - N;

u = M/2;

v = N/2;

for i=1:M;

for j=1:N;

[V, U] = meshgrid(v, u);

D = sqrt((i-u).^2+(v-j).^2);

% H = double(D > D0);%IHPF

H = 1./(1 + (D0./D).^(2*n)); %BHPF

% H = 1-exp(-(D)^2/(2*(D0^2)));%GHPF

end

end

filter_G = H .* ihpf_logshift;

% axes(handles.axes11)

figure(4);

imshow(abs(filter_G),[]);

Out_ifft=ifftshift(filter_G);

% axes(handles.axes12)

figure(5);

imshow(abs(Out_ifft),[]);

ori= ifft2(Out_ifft);

figure(6);

imshow(log(abs(ori)));

but the result of IFFT2 showing no image and only black figure. please help me.