I’ve used micatoolbox and QCPA for data collection and analysis and am reaching the manuscript writing stage (hooray). In my outputs, my understanding is that the “Area” column is the total number of pixels that each cluster covers (but please correct me if I’m wrong), and this is calibrated by creating the scale bar in the mspec image. I’d like to convert that value to millimeters or some other SI unit of measure to have a more realistic discussion of my color patch sizes. Can this be done? Or is the Area value actually millimeters-squared and not pixels after all?
The QCPA measures area in two different ways. To translate PT (Average patch size, estimated based on the transition matrix) to mm or cm, please see the supplementary material of the QCPA paper. Else, the output of the particle analysis is measured in pixels (a precise measure), which can similarly be translated to mm/cm using your size standard in the resized image.