ns the modification time to be stored with this image.

 <p> If the bit depth has not previously been set, or has been
 unset, an <code>IllegalStateException</code> will be thrown.</div>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.IllegalStateException</code> - if the bit depth is not set.</dd>
</dl>
</li>
</ul>
<a id="unsetModificationTime()">
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<h4>unsetModificationTime</h4>
<pre class="methodSignature">public&nbsp;