CImage:Object
The Object method returns the object description from the image header. This is taken from the FITS format OBJECT keyword.
| sObject = CImage:Object() where | 
 sObject is a string describing the observation
or image.
    sObject is a string describing the observation
or image.
 On failure,
this method returns nil.
    On failure,
this method returns nil.
Suppose a CImage object I is attached to an image and has the description "An interesting observation". Then
prints the following: