Scalable Cytometry Image Processing (SCIP) is an open-source tool that implements an image processing pipeline on top of Dask, a distributed computing framework written in Python. SCIP performs projection, illumination correction, image segmentation and masking, and feature extraction.
Module: https://github.com/CellProfiler/CellProfiler/blob/master/cellprofiler/modules/measureimagequality.py
Implements focus scoring, local focus scoring, correlation and power log log slope. Discussed in this paper: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6112602/pdf/nihms947726.pdf