Image Processing Software
Before you can download images from SDSS, you will need a program to
view them. A good freeware program called Iris is available for download
on the Internet. You can download it from the
IRIS Home Page.
Scroll down to "How to install version 5.59...," then click the "IRIS.ZIP" link below it to
download the file iris.zip. You will need to unzip it using a program such
as StuffIt. After the program is unzipped, click on the
file "iris.exe" to launch Iris.
When you launch Iris, you will see the screen similar to the screen shown below:

Next, you need to set up Iris so it knows where to find the pictures you want
to use. Click on File and then Settings. The following window
will appear.

If you plan on getting your images from a CD-ROM, be sure the drive letter is correct.
Change the working path to the directory where you plan to store your
images. You might create a directory with your name to store your images. Change the
working path to c:\MyName\
Fits files can have a file type of either .fit or .fts. The rest
of this project will use the .fits extension, which can be opened by IRIS only if you
select FIT. Make sure that the File Type is set to FIT, then click OK.
Now, you need to get some images to analyze!
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