Step 1 of the Target Detection Wizard is to select the input file for processing, and to provide a root name for all output files generated during target detection analysis.

1. Click Select Input File. The Input File dialog appears.
2. Select an input file, then click OK. The file should contain more than one spectral band.
3. Click Select Output Root Name. The Output Files dialog appears.
4. Enter a File name to use as the root name of all output files generated by the target detection analysis, then click OK. ENVI appends a descriptive extension to the output filename: _mnf for MNF transform results, _mf for Matched Filtering rule images, _cem for Constrained Energy Minimization rule images, _mf_target for Matched Filtering binary decision, _mf_target.shp for Matched Filtering shapefile output, _mf_target.roi for Matched Filtering ROI output, and so forth.

Note: If files with the specified root name already exist, ENVI prompts you to delete the existing files before continuing. If you select No, you need to enter a different output root filename.

5. Click Next in the Wizard. The Atmospheric Correction panel appears.