words specified in a header file. Creates two output files, one containing the coadded pixel values, and the other containing coadded pixel area values. The pixel area values can be used as a weighting function if the output pixel values are themselves to be coadded with other projected images, and may also be used in validating the fidelity of the output pixel values.</dd>
</dl>

<dl class="syntax">
  <dt>Syntax:</dt>
  <dd>mAdd [-p <i>imgdir</i>] [-n(o-areas)] [-a mean|median|count] [-e(xact-size)] [-d <i