tomopy.prep.phase
¶
Module for phase retrieval.
Functions:
retrieve_phase (tomo[, pixel_size, dist, …]) |
Perform single-step phase retrieval from phase-contrast measurements [Paganin:02]. |
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tomopy.prep.phase.
retrieve_phase
(tomo, pixel_size=0.0001, dist=50, energy=20, alpha=0.001, pad=True, ncore=None, nchunk=None)[source]¶ Perform single-step phase retrieval from phase-contrast measurements [Paganin:02].
Parameters: - tomo (ndarray) – 3D tomographic data.
- pixel_size (float, optional) – Detector pixel size in cm.
- dist (float, optional) – Propagation distance of the wavefront in cm.
- energy (float, optional) – Energy of incident wave in keV.
- alpha (float, optional) – Regularization parameter.
- pad (bool, optional) – If True, extend the size of the projections by padding with zeros.
- ncore (int, optional) – Number of cores that will be assigned to jobs.
- nchunk (int, optional) – Chunk size for each core.
Returns: ndarray – Approximated 3D tomographic phase data.