i>---an <a href="#image"><b>image</b></a>
<p><i>result-image</i>---an <a href="#image"><b>image</b></a>

<p><b>Description:</b> <p>If <i>image</i> is an <a
href="#8-bit-image"><b>8-bit-image</b></a>, return it or a copy of it.
If <i>image</i> is a <a href="#16-bit-image"><b>16-bit-image</b></a>,
return an <a href="#8-bit-image"><b>8-bit-image</b></a> that has the
same width, height, and number of channels as <i>image</i>, but where
each element is the corresponding element in <i>image</i> divided by
257 and