I'm performing supervised classification on Landsat images, but I can't find many sources about how to use the Maximum Likelihood method. There are many about what is the process of loading the data to the tool, clicking the training site etc., but none explain how should one do it correctly, to minimise covariance, how to adjust histograms and do other preprocessing to get images ready. And that is what I'd like to discuss - how do you prepare your data and training sites?
Best regards,
Adam
