index.md

---

title: <feGaussianBlur>
slug: Web/SVG/Element/feGaussianBlur
page-type: svg-element
tags:
  - Element
  - SVG
  - SVG Filter
browser-compat: svg.elements.feGaussianBlur

---

{{SVGRef}}

The <feGaussianBlur> SVG filter primitive blurs the input image by the amount specified in {{SVGAttr("stdDeviation")}}, which defines the bell-curve.

Usage context

{{svginfo}}

Attributes

Global attributes

• Core attributes

• Presentation attributes

• Filter primitive attributes

• {{SVGAttr("class")}}

• {{SVGAttr("style")}}

Specific attributes

• {{SVGAttr("in")}}

• {{SVGAttr("stdDeviation")}}

• {{SVGAttr("edgeMode")}}

DOM Interface

This element implements the {{domxref("SVGFEGaussianBlurElement")}} interface.

Example

Simple example

SVG

<svg
  width="230"
  height="120"
  xmlns="http://www.w3.org/2000/svg"
  xmlns:xlink="http://www.w3.org/1999/xlink">
  <filter id="blurMe">
    <feGaussianBlur in="SourceGraphic" stdDeviation="5" />
  </filter>

  <circle cx="60" cy="60" r="50" fill="green" />

  <circle cx="170" cy="60" r="50" fill="green" filter="url(#blurMe)" />
</svg>

Result

{{EmbedLiveSample("Simple_example",232,124,"/files/4227/feGaussianBlur.png")}}

Drop shadow example

SVG

<svg
  width="120"
  height="120"
  xmlns="http://www.w3.org/2000/svg"
  xmlns:xlink="http://www.w3.org/1999/xlink">
  <filter id="dropShadow">
    <feGaussianBlur in="SourceAlpha" stdDeviation="3" />
    <feOffset dx="2" dy="4" />
    <feMerge>
      <feMergeNode />
      <feMergeNode in="SourceGraphic" />
    </feMerge>
  </filter>

  <circle cx="60" cy="60" r="50" fill="green" filter="url(#dropShadow)" />
</svg>

Result

{{EmbedLiveSample("Drop_shadow_example",125,124,"/files/4229/feGaussianBlur-dropshadow.png")}}

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

See also

• {{SVGElement("filter")}}

• {{SVGElement("feBlend")}}

• {{SVGElement("feColorMatrix")}}

• {{SVGElement("feComponentTransfer")}}

• {{SVGElement("feComposite")}}

• {{SVGElement("feConvolveMatrix")}}

• {{SVGElement("feDiffuseLighting")}}

• {{SVGElement("feDisplacementMap")}}

• {{SVGElement("feFlood")}}

• {{SVGElement("feImage")}}

• {{SVGElement("feMerge")}}

• {{SVGElement("feMorphology")}}

• {{SVGElement("feOffset")}}

• {{SVGElement("feSpecularLighting")}}

• {{SVGElement("feTile")}}

• {{SVGElement("feTurbulence")}}

• SVG tutorial: Filter effects