How to calculate radiograph quality in MTF, DQE and NPS


Good day! Currently, I’m using ImageJ to analyze MTF, DQE and NPS for my radiograph. At first, I found that there is a plugin namely ‘COQ’. Unfortunately, I failed to understand it and don’t how it work. Does any one know how to use the ‘COQ’ plugin or any other methods can calculate DQE, MTF and NPS of a radiograph?
Thank you so much for your kindness. :pray:t2::pray:t3::pray:t4::pray:t5::pray:t6: