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Select Text to import a two-dimensional array of numbers stored in tab-delimeted text format, for example, a spreadsheet saved as "Text Only". Values do not have to be in the range 0-255, and may be in decimal or scientific format. By reading in the text file twice, image is able to determine the number of rows and columns, and to scale to 8-bits (1-254). Blank cells are assumed to have a value of zero. If Fixed Scale is checked then automatic scaling is disabled, values are scaled to 8-bits from the range Min-Max, values less than Min are set to Min, and values greater than Max are set to Max.

Select Look-Up Table to import a 768 byte binary LUT consisting of 256 consecutive red values, 256 consecutive green values, and 256 consecutive blue values. The values should be in the range 0-255.

Select Custom to open other types of 8-bit and 16-bit binary images. Width is the width of the image in pixels and Height is the number of lines in the image. For 16-bit images, the maximum value that can be entered for Width is 4096. Offset specifies the number of bytes Image will skip before it starts reading the pixel data. For example, use an offset of 512 to skip over a 512 byte file header. Set Slices to more than one to import 3D data sets such as multi-slice volumes from medical scanners.