-- An Enhancement to COSMICRAYS
A new capability has been added to the
cosmicrays task in V2.10.3BETA.
When in interactive mode, the task now includes an optional ``training'' feature
in which users can designate image objects as stars or cosmic rays. This
information is then used to set the flux ratio threshold that best separates
the two classes of objects. The user first loads the image to be cleaned into
the image display device and then calls cosmicrays
with the training feature
turned on. The task will then read from the image display cursor, and allow
the user to mark objects by typing ``c'' for cosmic rays or ``s'' for stars.
As objects are assigned,
their corresponding symbols are updated in the graphics
display. The user may switch to the graphics display to view surface plots or
find a feature's image coordinates, and then back to the image display for
more training. For non-interactive use, a list of training object positions
and designations may also be supplied in a cursor file.
Additional information
is given in the help page, and an example appears in a new IRAF document called
Cleaning Images of Bad Pixels and Cosmic Rays,
which is available by FTP to
iraf.noao.edu in the /iraf/docs directory as file
``clean.ps.Z''.
Dave Bell
This document was translated by ms2html v1.8 on 21Jan95.