<?xml version="1.0"?>
<svg xmlns="http://www.w3.org/2000/svg"
     xmlns:xlink="http://www.w3.org/1999/xlink">
<defs>
    <clipPath id="myclip">
        <path d="M 0 0 l 100 0 l 0 100 l -100 0 Z"/>
    </clipPath>
    <filter id="myfilter" filterUnits="objectBoundingBox" x="-10%" y="-10%" width="120%" height="120%">
        <feGaussianBlur stdDeviation="10"/>
    </filter>
</defs>
<image width="503" height="410" xlink:href="resources/green-checker.png" y="50" transform="translate(0,-25)" filter="url(#myfilter)" clip-path="url(#myclip)"/>
<text y="125">You should see a solid green block above (a blurred and clipped green checkerboard).</text>
</svg>