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pyDHM: A Python library for applications in digital holographic microscopy

2022; Public Library of Science; Volume: 17; Issue: 10 Linguagem: Inglês

10.1371/journal.pone.0275818

1932-6203

Raúl Castañeda, Carlos Trujillo, Ana Doblas,

Optical measurement and interference techniques

pyDHM is an open-source Python library aimed at Digital Holographic Microscopy (DHM) applications. The pyDHM is a user-friendly library written in the robust programming language of Python that provides a set of numerical processing algorithms for reconstructing amplitude and phase images for a broad range of optical DHM configurations. The pyDHM implements phase-shifting approaches for in-line and slightly off-axis systems and enables phase compensation for telecentric and non-telecentric systems. In addition, pyDHM includes three propagation algorithms for numerical focusing complex amplitude distributions in DHM and digital holography (DH) setups. We have validated the library using numerical and experimental holograms.