LayoutTests/css3/filters/effect-reference-composite.html

<svg xmlns="http://www.w3.org/2000/svg" width="0" height="0" version="1.1">
  <defs>
    <filter id="over">
      <feColorMatrix type="matrix" values="1 0 0 0 0  0 1 0 0 0  0 0 1 0 0  0 0 0 0.7 0" result="matrix"/>
      <feComposite in2="matrix" operator="over"/>
    </filter>
    <filter id="in">
      <feColorMatrix type="matrix" values="1 0 0 0 0  0 1 0 0 0  0 0 1 0 0  0 0 0 0.7 0" result="matrix"/>
      <feComposite in2="matrix" operator="in"/>
    </filter>
    <filter id="out">
      <feColorMatrix type="matrix" values="1 0 0 0 0  0 1 0 0 0  0 0 1 0 0  0 0 0 0.7 0" result="matrix"/>
      <feComposite in2="matrix" operator="out"/>
    </filter>
    <filter id="atop">
      <feColorMatrix type="matrix" values="1 0 0 0 0  0 1 0 0 0  0 0 1 0 0  0 0 0 0.7 0" result="matrix"/>
      <feComposite in2="matrix" operator="atop"/>
    </filter>
    <filter id="xor">
      <feColorMatrix type="matrix" values="1 0 0 0 0  0 1 0 0 0  0 0 1 0 0  0 0 0 0.7 0" result="matrix"/>
      <feComposite in2="matrix" operator="xor"/>
    </filter>
  </defs>
</svg>
<style>
img {
    margin: 10px;
}
</style>
<img style="filter: url(#over); filter: url(#over);" src="resources/reference.png">
<img style="filter: url(#in);   filter: url(#in);"   src="resources/reference.png">
<img style="filter: url(#out);  filter: url(#out);"  src="resources/reference.png">
<img style="filter: url(#atop); filter: url(#atop);" src="resources/reference.png">
<img style="filter: url(#xor);  filter: url(#xor);"  src="resources/reference.png">