NAME
mn - computes the mean of an image file
SYNOPSIS
mn file [box=]
DESCRIPTION
This routine calculates the mean of the data in file1
(or file.fits) specified in the
command line. The operation is performed over the entire file, or as
specified optionally in the
box.
The program puts a line to stdout similar to the following:
mean=10.16 rms=9.89 sum=3169 npixels=312