CCSD3ZF0000100000001NJPL3IF0PDS200000001 = SFDU_LABEL
RECORD_TYPE                    = STREAM
PRODUCT_CREATION_TIME          = 1991-11-18
OBJECT                         = TEXT
   NOTE                        = "Description of the Macintosh II
                                  software provided with the MDIM
                                  CD-ROM set"
END_OBJECT                     = TEXT
END

                                  Macintosh Software

This directory contains software which can be used to display the Mars
Digital Image Map (MDIM) images on a Macintosh II computer with an 8-bit 
color display.  The NIH Image program, a public domain program written 
by Wayne Rasband of the National Institutes of Health is provided.  The
version on this disk has been modified to directly read the Planetary
Data System labels on the MDIM image files.

The program and documentation are stored in a self-extracting StuffIt
file called IMAGE.SIT;1.  Double-click on the IMAGE.SIT;1 icon and 
you will be prompted to select a directory on your hard disk where the 
folder MAC is to be placed.  This folder contains the Image program, 
documentation and several folders called 'kernels', 'macros' and 'palettes' 
which are distributed with the Image program.  Refer to the Image
manual for more information about the use of these folders.

The file 'Image Prefs' should be copied into your system folder.  It will set
several of Image's default settings for use with the MDIM images,
such as gray scale palette and a large clipboard.  It is set-up for use
on an 8-megabyte Macintosh with Finder running.  Users with 4-megabyte
Macintosh systems may have to edit the 'PREFERENCE' settings in the
'OPTIONS' menu of IMAGE and reduce the size of the undo and clipboard 
buffers  to 100K in order to display some of the larger MDIM images.

Image should be run under Finder for best results.  When running
under multifinder, the memory allocated to Image should be set as 
high as possible, using the Macintosh 'Get Info' command in the 'File'
menu. 

To display the MDIM images use the 'OPEN' command in the 'FILE' menu 
to select the image.  Refer to the Image manual for more information 
about program operation.