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Image viewers displayed in the alignment and reconstruction tabs. (a) Imported Projections viewer, where an ROI shown in red captures a portion of the data to send to the (b) Altered Projections viewer, which is the data used for alignment or reconstruction. The Altered Projections viewer ROI is used to select a pixel range to compare the projected and reprojected images in the joint iterative alignment algorithm (Gürsoy et al., 2017 ▸).
