showing a colored matrix with colormap

Sorry for this simple question.

I have a 2D matrix , and I was trying to display it as a colored image uisng "colormap", but I just get black and white image.

figure('Name','network matrix');
imsh=imshow(nwmat, 'InitialMagnification','fit');
colormap ('jet');

The figure' colors supposed to be similar to this one

but i get a figure with colors like this

[Stephen23]

Your array only consists of two values:

>> unique(nwmat(:))
ans =
   0
   1

Would you expect two values to be displayed with more than two colors?

Or do you want two other colors to be used to represent the two values in your array?

[abdulkawi alareefi]

I am sorry. It's my mistake . I attached the wrong matrix. I have attached the original one named "nwmat". Thanks for your concern.

Answer 1

[Stephen23]

imshow(nwmat,'DisplayRange',[],'Colormap',jet(64))

[abdulkawi alareefi]

Thanks