U.S.G.S. Planetary GIS Web Server - PIGWAD

How to georeference ISIS images for use a GIS

• Convert ISIS2 cubes to Tiff format using ISIS2
  • Run TAE t dform
    • From = imagename.cub
    • Otype = 1 (8-bit)
    • Oform = T (.tif file)
    • gisworld = "yes"

 

• Convert ISIS3 cubes to Tiff format using ISIS3
  • Run isis2std
    • From=imagename.cub
    • to format of choice
    • the woldfile will be automatically generated

 

• Create worldfiles from the ISIS cubes (without using ISIS)

  • At UNIX prompt, make a list of the .cub files
    • ls –1 *.cub > cub.lst
  • At the UNIX prompt run:
    • perl isis2world -t myfile.cub
      • download isis2world.pl or isis3world.pl PERL scripts here.

 

• Bring images into a projected view in ArcView
  • ftp the .tif and .tfw files to your ArcView folder
  • Use Projection and Spheroid extension to create proper projection for image (set the correct central meridian, ...). See the Projection and Spheroid Tutorial.
  • Add .tif files as images to the projected view

MOC notes : 

• If you wish to use all images in the same view make sure to specify the projection, central longitude, and lonsys=180 during 'MOCLev2' or 'MOCLevAll' processing steps.

After processing and mosaicing is completed, use the steps above (using dform will automate conversion from 32 bit to 8 bit).