Before I choosed ROI on land surface temperature (LST) images and obtained pixel values of LST. Now I need pixel value of another images which are stacked multi-band image. My main purpose is to obtain pixel values of both images "at the same location". I think that I can use ROI file from LST to choose the pixel values of multiband image. Anyone who guide me to accomplish this purpose using ARCGIS, ENVI, ERDAS?
I choosed the ROI in rectangular mood in ENVI. When I opened it, it looks like small polygons (not points) spreading on my study area.
Thanks a lot