MATLAB Function Reference    

Inverse FFT shift



ifftshift(X) undoes the results of fftshift.

If X is a vector, iffshift(X) swaps the left and right halves of X. For matrices, ifftshift(X) swaps the first quadrant with the third and the second quadrant with the fourth. If X is a multidimensional array, ifftshift(X) swaps "half-spaces" of X along each dimension.

ifftshift(X,dim) applies the ifftshift operation along the dimension dim.

See Also

fft, fft2, fftn, fftshift

  ifftn im2frame