ss_1.csv (550 Bytes)
Thank you for answering.
I assumed the file with the signatures is ok, because when I open the Spectral Unmixing window and I select it, all the signatures appear in the small spectrum view inside the window itself.
I have anyway attached the file here. For the spectral unmixing I chose the following spectral signatures: Veg_1, Bright_1, Dark_4.