Here is a good example using ENVITask: http://www.exelisvis.com/Home/NewsUpd...

I think I understand everything in the code until the foreach loop that I have pasted below. As a reminder, I need to run a program I have that converts every MTL and Panchromatic file to a tif that has reflectance values for all the bands. Is "Execute" the program name in the code below? If not, how do I tell the batch program to run my reflectance.pro? foreach file, filelist, index do begin raster = e.OpenRaster(file) task.input_raster = raster task.output_raster_uri = outbase + strtrim(index, 2) task.Execute endforeach

The foreach statement goes through the list of files to process them in the specified task. Execute in this example will run (execute) the task (radiometric calibration) and output the file to reflectance (or radiance depending on what you choose). Then you will need to use another task (ENVIRaster::Export) to export the ENVI format file to TIFF. Radiometric calibration to TOA reflectance: http://www.exelisvis.com/docs/ENVIRad... Note that because Landsat MTL files have more than one dataset (Pan+MS), you will need to choose which dataset to process and loop through each one to get both the Pan and MS file calibrated. Export to TIFF: http://www.exelisvis.com/docs/ENVIRas...