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Shimexpy: A python package for spatial harmonic imaging
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DOI：10.1016/j.softx.2026.102700.png)
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Abstract
En 中文
Spatial Harmonic Imaging (SHI) is a multicontrast and single-shot X-ray imaging modality that retrieves atten uation, differential phase, and scattering information from Fourier space. Although single-shot measurements are inherently fast, obtaining the three SHI contrasts in a fully processed form still requires a dedicated and efficient computational pipeline, particularly one that is cross-platform and integrable into user-defined work flows-capabilities that existing implementations do not currently provide. In this paper, we present Shimexpy, an open-source Python package that automates Fourier-domain processing, harmonic extraction, and the recon struction of attenuation, differential phase, and scattering contrasts. The package provides a modular design and Python API, supports cross-platform environments, and promotes reproducibility through scripted pipelines and open licensing. We outline the software architecture, the core algorithms, open experimental datasets, and a minimal reproducible example. We additionally discuss performance, portability, and extensibility.
Keywords:
Spatial harmonic imaging
X-ray multicontrast
Mesh-based x-ray imaging
Python package