function call:

[out_img1]=vsg('ViewFFT',in_img1r,in_img1i);

 

Arguments:

in_img1r - input image, 3 channel RGB, 1 channel greyscale or binary image of the real FFT coefficients.

in_img1i - input image, 3 channel RGB, 1 channel greyscale or binary image of the imaginary FFT coefficients.

 

Description:

out_img1 – the output image values are the normalised log of the magnitude of the Fourier transform images.

 

Example:

img = openimage('baboon.jpg');

h=figure;image(img);set(h,'Name','Input Image');

[out_img1,out_img2]=vsg('FFT',img);

[out_img3]=vsg('ViewFFT',out_img1,out_img2);

h=figure;imagesc((out_img3(:,:,1)));colormap(gray);set(h,'Name','FFT');

 

Notes:

For RGB images, the function operates on all colour planes separately.