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<dd>An array containing the luminance data.</dd>
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<h4>getMatrix</h4>
<pre>public&nbsp;byte[]&nbsp;getMatrix()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../com/google/zxing/LuminanceSource.html#getMatrix--">LuminanceSource</a></code></span></div>
<div class="block">Fetches luminance data for the underlying bitmap. Values shoul