<feMorphology>

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.

<feMorphology> SVG 滤镜原语用于对输入图像进行腐蚀或膨胀。它的用途尤其体现在加粗或变细效果上。

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

此元素实现了 SVGFEMorphologyElement 接口。

示例

过滤 SVG 内容

SVG

html
<svg xmlns="http://www.w3.org/2000/svg" width="300" height="180">
  <filter id="erode">
    <feMorphology operator="erode" radius="1" />
  </filter>
  <filter id="dilate">
    <feMorphology operator="dilate" radius="2" />
  </filter>
  <text y="1em">普通文本</text>
  <text id="thin" y="2em">细文本</text>
  <text id="thick" y="3em">粗文本</text>
</svg>

CSS

css
text {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 3em;
}

#thin {
  filter: url(#erode);
}

#thick {
  filter: url(#dilate);
}

过滤 HTML 内容

SVG

html
<svg xmlns="http://www.w3.org/2000/svg" width="0" height="0">
  <filter id="erode">
    <feMorphology operator="erode" radius="1" />
  </filter>
  <filter id="dilate">
    <feMorphology operator="dilate" radius="2" />
  </filter>
</svg>

<p>普通文本</p>
<p id="thin">细文本</p>
<p id="thick">粗文本</p>

CSS

css
p {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 3em;
}

#thin {
  filter: url(#erode);
}

#thick {
  filter: url(#dilate);
}

规范

Specification
Filter Effects Module Level 1
# feMorphologyElement

浏览器兼容性

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
feMorphology
in
operator
radius

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support

参见