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<h4>isBackgroundSet</h4>
<pre class="methodSignature">public&nbsp;boolean&nbsp;isBackgroundSet()</pre>
<div class="block">Returns true if a 'bKGD' chunk will be output.
 For API compatibility with JAI 1.0, the superclass
 defines this method to throw a <code>RuntimeException</code>;
 accordingly, subclasses must provide their own implementations.</div>
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