hello every one: I want to ask how to get the IDL source program about the algorithms library of the ENVI? for example:I want to know the IDL program of emissivities normalization in ENVI4.0,how can I get it?can I open it in IDL? which directory is the program in?can I get all of the IDL source program of the ENVI? thank you ! hqh20000@263.net