Colleagues! I am new to ENVI and a bit confused with the layer stacking and mosaic tools. The thing is i have calibrated my image into (radiance, reflectance and brightness temp) and these files are in separate files which means for me to use them - say for classification i need to have one single file. What i did was i layer stacked them and ended up with a lot of bands on the spectral info under the metadata tab, but i was interested in getting less say 7 bands. What could have happened. How do i use them like this?