tomodrgn.fft.fft2_center

fft2_center(possibly_batched_imgs: ndarray) → ndarray

Batch-vectorized 2-D DFT of an even-box sized image(s) as numpy array Note: numpy promotes default input dtype np.float32 to output dtype np.complex128

Parameters:

possibly_batched_imgs – np.ndarray of images, shape ([N], D, D)

Returns:

np.ndarray of images DFT, shape ([N], D, D)