FIGURE 2.

Illustration showing the variables that can be measured and recorded using SizeExtractR. (a) Seven size metrics are automatically measured with SizeExtractR‐macros, once ROIs are fully annotated. (b) An example annotation shows how categorical ROI Variables are recorded based a simple labeling system. (c) Optional categorical Directory Variables can also be included in analyses to record additional notes on each ROI and are derived from folder names