<feGaussianBlur>

Baseline Widely available *

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

* Some parts of this feature may have varying levels of support.

<feGaussianBlur> SVG 滤镜原语根据 stdDeviation 指定的值（其定义了模糊的钟形曲线）对输入图像进行模糊处理。

使用上下文

类别滤镜元素
允许的内容任意数量、任意顺序的下列元素：
<animate>、<set>

属性

DOM 接口

该元素实现了 SVGFEGaussianBlurElement 接口。

示例

基础示例

SVG

html
<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>

结果

阴影示例

SVG

html
<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>

结果

规范

Specification
Filter Effects Module Level 1
# feGaussianBlurElement

浏览器兼容性

BCD tables only load in the browser

参见