<feGaussianBlur>

The <feGaussianBlur> SVG filter primitive blurs the input image by the amount specified in stdDeviation, which defines the bell-curve.

Usage context

Categories Filter primitive element
Permitted content Any number of the following elements, in any order:
<animate>, <set>

Attributes

Global attributes

Specific attributes

DOM Interface

This element implements the 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

Screenshot Live sample

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

Screenshot Live sample

Specifications

Specification
Filter Effects Module Level 2 (Filter Effects 2)
# feGaussianBlurElement

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
feGaussianBlur
Yes
≤18
4
10
9
9.1
?
Yes
Yes
?
?
Yes
edgeMode
?
?
?
?
?
?
?
?
?
?
?
?
in
?
≤18
4
?
9
9.1
?
?
Yes
?
?
?
stdDeviation
?
≤18
4
?
9
9.1
?
?
Yes
?
?
?

See also

© 2005–2021 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/SVG/Element/feGaussianBlur