<feGaussianBlur>

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

Usage context

CategoriesFilter primitive element
Permitted contentAny 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

ScreenshotLive 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

ScreenshotLive sample

Specifications

Specification Status Comment
Filter Effects Module Level 1
The definition of '<feGaussianBlur>' in that specification.
Working Draft Added edgeMode attribute
Scalable Vector Graphics (SVG) 1.1 (Second Edition)
The definition of '<feGaussianBlur>' in that specification.
Recommendation Initial definition

Browser compatibility

DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
feGaussianBlurChrome ? Edge Full support ≤18Firefox Full support 4IE ? Opera Full support 9Safari Full support 9.1WebView Android ? Chrome Android ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
edgeModeChrome ? Edge ? Firefox ? IE ? Opera ? Safari ? WebView Android ? Chrome Android ? Firefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android ?
inChrome ? Edge Full support ≤18Firefox Full support 4IE ? Opera Full support 9Safari Full support 9.1WebView Android ? Chrome Android ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
stdDeviationChrome ? Edge Full support ≤18Firefox Full support 4IE ? Opera Full support 9Safari Full support 9.1WebView Android ? Chrome Android ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?

Legend

Full support
Full support
Compatibility unknown
Compatibility unknown

See also