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                               IMDISP 7.4
                             August 23, 1991
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     Version 7.4 of the IMDISP program has now been released.  IMDISP is an
interactive image processing program that runs on an IBM PC computer.  It was
written to be used with the Voyager and Magellan images which are available
on CD-ROM.  IMDISP has appeared on the GRIPS CDROM (version 4.4) and the GRIPS 2 CDROM
(version 5.6), and is currently distributed with the planetary images CDROMs.
IMDISP 7.4 is a test version and is being released for evaluation.

     IMDISP 7.4 is available via anonymous ftp at ames.arc.nasa.gov
[128.102.18.3] in a file called imdisp74.zip in the pub/SPACE/SOFTWARE
subdirectory.  It is also available through simtel [192.88.110.20] at
PD1:<MSDOS.GRAPHICS>IMDISP74.ZIP.

     IMDISP74.ZIP consists of the following files:

                IMDISP.EXE   - IMDISP program version 7.4
                IMDISP.DOC   - User's Guide for IMDISP 7.4
                PALETTES.ZIP - Color palette collection
                PAL.BAT      - Batch file to display each color palette
                CYCLE.BAT    - Batch file to color cycle each color palette

     Also included in a separate file, IMDISPD.ZIP, which is a collection of
images and batch files which are used to perform a demo for IMDISP.  This
demo is similiar to the one I gave during the JPL Expo on August 3-4, 1991.
The demo requires a minimum of a 800x600 graphics display and 2MB of memory.

     Since I am one of the programmers for IMDISP, I would appreciate any
feedback on IMDISP, including any problems encountered and suggestions for
improvement.  The features of the program are listed below.


        Ron Baalke
        Jet Propulsion Lab
        M/S 301-355
        4800 Oak Grove Drive
        Pasadena, CA 91109

        Email: baalke@kelvin.jpl.nasa.gov

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     IMDISP 7.4 features (new features denoted by **)

        o Basic Operations
             Image Display
             Image Sub Sampling
             Image Zooming
           **Image Buffering
           **Image Merging & Subtraction
           **Image Darkening & Brightening
             Image Flipping
             Histograms
             Image Browsing of CDROMs
             Text Display
             Profiling

        o Image Processing
             Contrast Enhancement
           **Smoothing
           **Edge Enhancement
           **Sharpening
           **Convolutions
           **3D Perspective
           **Smearing
           **Power Filtering
           **Image Masking

        o Color Palettes
             Load & Save
             Pseudo Coloring
           **Color Cycling
             Built-in Color Palettes

        o Graphics Support
             CGA
             EGA
             VGA
             Super VGA:
                ATI VGA Wonder
                Everex
                Orchid (ET3000 & **ET4000 versions)
                Paradise
                PGA
              **Trident

        o File Formats Supported:
             Input:
                VICAR
                PDS
                FITS
              **GIF
                raw

             Output:
                PDS
              **GIF

        o Miscellaneous Features
           **Extended and Expanded Memory Support
           **Command Logging
           **Mouse Support
             Batch File Support

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