= imagebounds =
{{{
imagebounds [-d <datum code>] [-t <output format>] [-c <coordinate type>] [-o outputfile] inputfile

options:
    -t  give an output format.  Default is csv.  The only valid options are:
        csv.
    -c  give the coordinate type for the output bounds.  Default geographic.
        This currently an be:
           geographic
           meters
    -o  Give the optional output file name.
    -d  output datum code
inputfile  This is the file we will use to compute the image bounds for

outputfile  This is the file we will use to output the information to.  If this
            is not given then by default it will change the extension of the inputfile
            to match the given output type.  For example csv output would have a .csv
            extension.

 NOTE: The last argument must be the input file
}}}