Use this command to read image files created by non-Macintosh based systems, to display spreadsheet data (text) as an image, or to import raw color look-up tables. It presents a dialog box that allows you to select the type of file to be imported.

Select TIFF to open 8 and 16-bit TIFF files imported from other systems, such as an IBM PC. Once a 16-bit TIFF file has been imported, you can use Rescale (aka Revert to Saved) to find the optimum 16-bit to 8-bit mapping. 16-bit TIFF files that represent white as zero open inverted.

Select DICOM to import 16-bit files in the DICOM-3 (Digital Imaging and Communications in Medicine) and ACR-NEMA formats used in radiology. A DICOM dictionary is required to decode the DICOM or ACR-NEMA header. This dictionary is available from zippy.nimh.nih.gov, in the /pub/nih-image/documents directory. It must be located in the same folder as NIH Image or in the System folder. When opening a DICOM file, hold the option key down to get a full header dump. When using the 'Open All' option, hold the shift key down to fix 16-bit to 8-bit scaling.