2 <effect tag="region" id="region">
3 <name>Regionalize</name>
4 <description>Apply sub-effects to a region defined by a clip's alpha channel</description>
5 <author>Charles Yates</author>
6 <parameter type="url" name="resource" default="">
9 <parameter type="fixed" name="filter_only" min="1" max="1" default="1" />