learn#
Implements functions for ptychographic deep learning.
- tike.ptycho.learn.extract_patches(psi, scan, patch_width)[source]#
Extract patches from the object function.
- Parameters
scan ((..., POSI, 2) float32) – Coordinates of the minimum corner of the patch grid for each extracted patch.
psi ((..., WIDE, HIGH) complex64) – The complex wavefront modulation of the object.
patch_width (int) – The desired width of the square patches to be extraced.
- Returns
patches – Patches of psi extracted at the given scan positions.
- Return type
(…, POSI, patch_width, patch_width) complex64 numpy-array