|ENVI User's Guide: Display Management|
Use the Available Files List to get information about the files that are currently open in ENVI and stored in memory. Also, use the Available Files List to open new files, close files, save memory items to disk, and edit ENVI headers.
Use the Available Files List on a regular basis to remove memory-only calculations from system memory.
To display a list of all the currently open image files, select Window Available Files List.
Use this procedure to view important information about each file. In the Available Files List, click on a filename.
ENVI displays information and parameters from the ENVI header file, including the full path and image name; the number of lines, samples, and bands (Dims); the file size; the interleave (BSQ, BIL, BIP); the data type (byte, integer, etc.); the file type; the byte order of the data (Host or Network); and whether or not the data is georeferenced and if any wavelengths are associated with the bands.
Use the Options menu to edit file headers (see Editing ENVI Headers for details).
Use the File menu options to open new files, close files, add files to memory, delete memory items, delete files from disk, and save memory items to disk.
ENVI opens the file and adds it to the Available Files List. The file information appears in the right side of the dialog.
To close all files (including memory items, which are automatically deleted), select File Close All Files from within the Available Files List.
To remove files that exist only in memory without closing open disk files select File Delete All Memory Items from within the Available Files List.
Memory items removed in this fashion are not recoverable.
Image files can be stored as an in-memory item for faster processing of large images.
This option is dependent on the amount of RAM available on your system.
All selected image files, including their parameters, are added as in-memory items to the Available Bands List.
If a warning box appears, it means that one or more bands from the file are currently displayed in one of the active display group windows. Select Yes to close the file and to remove the associated bands from the display.
If the file is a memory item, it is removed from memory and any associated displays are closed.
To close the Available Files List, select File Cancel.
ENVI Online Help (August 12, 2005)