Hi, I have some questions on the “form factor” measurement in cellprofiler. I’m aware that form factor for a circular object =1, whereas a more elongated object will have form factor <1. What about when form factor >1? what does that say about the shape of the object?
And I noticed that in some published papers (eg https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2826413/#pone.0009367-Koopman1), form factor is defined as (perimeter2/4πarea) in comparison to cellprofiler, form factor is defined as ( 4π*Area/Perimeter2), why would this definition differ in different analysis?
Thank you in advance