<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.
The<feMorphology>SVG filter primitive is used to erode or dilate the input image. Its usefulness lies especially in fattening or thinning effects.
Like other filter primitives, it handles color components in thelinearRGBcolor space by default. You can usecolor-interpolation-filters to usesRGB instead.
Usage context
Attributes
DOM Interface
This element implements theSVGFEMorphologyElement interface.
Examples
Filtering SVG content
SVG
html
<svg xmlns="http://www.w3.org/2000/svg" width="300" height="180"> <filter> <feMorphology operator="erode" radius="1" /> </filter> <filter> <feMorphology operator="dilate" radius="2" /> </filter> <text y="1em">Normal text</text> <text y="2em">Thinned text</text> <text y="3em">Fattened text</text></svg>CSS
css
text { font-family: "Helvetica", "Arial", 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> <feMorphology operator="erode" radius="1" /> </filter> <filter> <feMorphology operator="dilate" radius="2" /> </filter></svg><p>Normal text</p><p>Thinned text</p><p>Fattened text</p>CSS
css
p { margin: 0; font-family: "Helvetica", "Arial", sans-serif; font-size: 3em;}#thin { filter: url("#erode");}#thick { filter: url("#dilate");}Specifications
| Specification |
|---|
| Filter Effects Module Level 1 # feMorphologyElement |