LayoutTests/svg/filters/feGaussianBlur-negative-deviation.svg

<?xml version="1.0" standalone="no"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">

<svg xmlns="http://www.w3.org/2000/svg" version="1.1">
  <defs>
    <filter id="f1">
      <feGaussianBlur stdDeviation="-1" />
    </filter>
    <filter id="f2">
      <feGaussianBlur stdDeviation="-1 -1" />
    </filter>
    <filter id="f3">
      <feGaussianBlur stdDeviation="1 -1" />
    </filter>
    <filter id="f4">
      <feGaussianBlur stdDeviation="-1 1" />
    </filter>
  </defs>
  <rect x="50" y="20" width="10" height="10" fill="green" filter="url(#f1)" />
  <rect x="50" y="40" width="10" height="10" fill="green" filter="url(#f2)" />
  <rect x="50" y="60" width="10" height="10" fill="green" filter="url(#f3)" />
  <rect x="50" y="80" width="10" height="10" fill="green" filter="url(#f4)" />
</svg>