Plotting a heat map using surf function

I have a 2D matrix and I want to plot a heat map. I use the following codes:

fig = surf(X,Y,F);
set(fig,'linestyle','none')
view(2)

But it displays just a plan entirely blue despite the large difference between Z values as shown in image below. How can I fix this issue?

[Dyuman Joshi]

Please attach the data you are working with.

[Roohollah]

Hi Dyuman,

I attached the image I am working on and here is my code:

clc
clear

f = imread('img.jpg');
f = im2gray(f);
f = rescale(f);

F = fft2(f);
F = abs(F);


x = (0 : size(f,2) - 1)';
y = (0 : size(f,1) - 1)';

[X, Y] = meshgrid(x,y);

fig = surf(X,Y,log(F+1));
set(fig,'linestyle','none')
view(2)

[Dyuman Joshi]

@Roohollah, The plot obtained here is different compared to the one you have attached above.

clc
clear


f = imread('img.jpg');
f = im2gray(f);
f = rescale(f);

F = fft2(f);
F = abs(F);


x = (0 : size(f,2) - 1)';
y = (0 : size(f,1) - 1)';

[X, Y] = meshgrid(x,y);

fig = surf(X,Y,log(F+1));
set(fig,'linestyle','none')
view(2)

[Roohollah]

Yes you are right. Because in this code I used log(F+1) instead of F in calling surf function. But the problem is the same. Sorry I forgot to mention it.

[Dyuman Joshi]

I ran the code again and plotted some data tips, and the output is still different from what you got.

Check the image attached.

[Roohollah]

That's fine.

Thanks for your time and consideration