Help for RGB2PSEUDO

rgb2pseudo takes a 24-bit RGB triplet (either 3 separate files or 3 bands
in a single file) and converts it to 8 bit (256 color) pseudo-color.  The
resultant output consists of two files:  one BYTE format image and one
VIDS format (IBIS tabular file) pseudo-color table file.

The purpose of rgb2pseudo is to select the "best" 256 colors with which to
view a given image, so that it may be displayed in color on workstations
which only display 256 colors simultaneously.

To view the pseudo-color image:

Pixel Pusher (Macintosh):  Use "Open New Transfer" in the "File" menu
    to open each of the two output files.  For the Lookup table file,
    use the "Attach to:" pop-up menu to select the image window, and
    click on "Attach".

VIDS (VICAR systems):  Display the image file with JDISP.  Use the
    JLOAD-PSEUDO command to load the lookup table file as a pseudo-
    color table.  Use the JPSEUDO command to put the device in pseudo-
    color mode.

HISTORY:  6 March 1995   J. Turner (CRI)  Made portable for UNIX

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