<feMorphology>
The <feMorphology>
SVG filter primitive is used to erode or dilate the input image. Its usefulness lies especially in fattening or thinning effects.
Usage context
Attributes
Global attributes
Specific attributes
DOM Interface
This element implements the SVGFEMorphologyElement
interface.
Examples
Filtering SVG content
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">Normal text</text>
<text id="thin" y="2em">Thinned text</text>
<text id="thick" y="3em">Fattened text</text>
</svg>
CSS
css
text {
font-family: Arial, Helvetica, sans-serif;
font-size: 3em;
}
#thin {
filter: url(#erode);
}
#thick {
filter: url(#dilate);
}
Filtering HTML content
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>Normal text</p>
<p id="thin">Thinned text</p>
<p id="thick">Fattened text</p>
CSS
css
p {
margin: 0;
font-family: Arial, Helvetica, sans-serif;
font-size: 3em;
}
#thin {
filter: url(#erode);
}
#thick {
filter: url(#dilate);
}
Specifications
Specification |
---|
Filter Effects Module Level 1 # feMorphologyElement |
Browser compatibility
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