thank you got it

Hello Malche, Thanks for replying. Got it right. By the way you seem to be an expert on ENVI. Kindly provide me a script (or other means) to do a sort of automated georeferencing. The tool on ENVI 4.3 to georeference MODIS image is one at a time. I need a script using ENVI IDL to georeference many MODIS images where I will create an input and output folder and do a loop of the georeferencing for all the images I will put in at the input folder. I got a simple coding but this is just one image at a time for the input filename is hard coded. Appreciate any help. Thank you. Regards, Cecil

ENVI itself does not currently expose any batch mode routines for georeferencing MODIS data.  There is a feature request open for that.  If you contact support@ittvis.com, we can add your name to that request.  You may also want to check out the MODIS Toolkit on our code library web site (http://www.ittvis.com/Use...Library.aspx).  Search in the ENVI category for MODIS, and you will find it.  It includes a routine that you can use to georeference MODIS data, with whatever input and output files you set up.  It doesn't automatically look in your input directory and loop throught all of the files there, but you can set that up yourself in your IDL code that calls the routine. Peg