glo_o.htm#output">output</a>
<a href="http://www.lispworks.com/documentation/HyperSpec/Body/26_glo_s.htm#stream">stream</a></p>

<p><b>Description:</b> <p>Writes <i>image</i> in PNG format to
<i>output</i>.  The current version always writes an 8-bit PNG file if
<i>image</i> is an <a href="#8-bit-image"><b>8-bit-image</b></a> and a
16-bit PNG file if <i>image</i> is an <a
href="#16-bit-image"><b>16-bit-image</b></a>.  Future versions may
write PNG files of lower bit depths than <i>image</i> when the least
s