NiReports contains the two main components of the visual reporting system of NiPreps:
- Reportlets: visualizations for assessing the quality of a particular processing step within the neuroimaging pipeline. Typically, reportlets show brain mosaics perhaps with contours and/or segmentations. They can be dynamic and flicker between two different states to help assess the accuracy of image registrations. However, the reportlets are not limited to brain mosaics, and can contain correlation plots, BOLD fMRI carpetplots, etc.
- Assembler: end-user NiPreps write out reportlets to a predetermined folder, which is then queried by the assembler using PyBIDS. The assembler follows a report specification in YAML format, which states the query to find specific reportlets and their corresponding metadata and text annotations. As a result, one HTML file with a concatenation of reportlets is produced.