dd><dd><code>alphaFilter</code> - alpha通道滤镜值，1.0f表示保持不变</dd>
<dt><span class="strong">返回:</span></dt><dd>处理后的图片新对象</dd><dt><span class="strong">从以下版本开始:</span></dt>
  <dd>3.5</dd></dl>
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<h4>draw4RecCorner</h4>
<pre>public static&nbsp;void&nbsp;draw4RecCorner(java.awt.Graphics&nbsp;