Phase Scrambling/Fourier transform of Images?

Hi there - I am trying to Fourier phase scramble an image and I am stuck on getting the image to appear. Upon transforming, imshow() shows a blank image - any idea what I am doing wrong? I've included the code below. Thank you so much.

img_object_path = "Object Image was specified here"

obj_img = imread(img_object_path); 

object_fft = fft2(obj_img);

mag = abs(object_fft);

phase = angle(object_fft);

phase = -pi + (pi+pi)*rand(size(phase)); % Between -pi and pi

reconstruct_img = mag * exp(i * phase);

phase_scrambled_img = abs(ifft2(reconstruct_img));

imshow(phase_scrambled_img);

Answer 1

[Subhadeep Koley]

phase_scrambled_img is of type double but its range is beyond [0, 1], therefore use the below syntax so that imshow(_) can scale the display based on the range of pixel values in phase_scrambled_img.

imshow(phase_scrambled_img, []);