LayoutTests/css3/filters/effect-saturate.html

<script>
if (window.testRunner) {
    // Force software rendering mode.
    window.testRunner.overridePreference("WebKitAcceleratedCompositingEnabled", "0");
}
</script>
<img style="-webkit-filter: saturate(0)" src="resources/reference.png">
<img style="-webkit-filter: saturate(0.5)" src="resources/reference.png">
<img style="-webkit-filter: saturate(1.0)" src="resources/reference.png">
<img style="-webkit-filter: saturate(2)" src="resources/reference.png">
<img style="-webkit-filter: saturate(5)" src="resources/reference.png">
<img style="-webkit-filter: saturate(10)" src="resources/reference.png">