files/en-us/web/api/svgfecompositeelement/operator/index.md
{{APIRef("SVG")}}
The operator read-only property of the {{domxref("SVGFECompositeElement")}} interface reflects the {{SVGAttr("operator")}} attribute of the given {{SVGElement("feComposite")}} element.
An {{domxref("SVGAnimatedEnumeration")}} object.
Using out, in and over operators in {{SVGElement("feComposite")}} element.
<svg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg">
<filter id="filter1">
<feImage
href="https://mdn.github.io/shared-assets/images/examples/progress-pride-flag.jpg"
width="200"
x="-70"
y="10" />
<feComposite in2="SourceGraphic" operator="out" />
</filter>
<filter id="filter2">
<feImage
href="https://mdn.github.io/shared-assets/images/examples/progress-pride-flag.jpg"
width="120"
x="30"
y="10" />
<feComposite in2="SourceGraphic" operator="in" />
<feComposite in2="SourceGraphic" operator="over" />
</filter>
<filter id="filter3">
<feImage
href="https://mdn.github.io/shared-assets/images/examples/progress-pride-flag.jpg"
width="140"
x="80"
y="10" />
<feComposite
in2="SourceGraphic"
operator="arithmetic"
k1="0.1"
k2="0.2"
k3="0.3"
k4="0.4" />
</filter>
<circle cx="30" cy="50" r="30" filter="url(#filter1)" />
<circle cx="90" cy="50" r="30" filter="url(#filter2)" />
<circle cx="150" cy="50" r="30" filter="url(#filter3)" />
</svg>
{{Specifications}}
{{Compat}}