stdDeviation
SVG Elements
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<feBlend>
<feColorMatrix>
<feComponentTransfer>
<feComposite>
<feConvolveMatrix>
<feDiffuseLighting>
<feDisplacementMap>
<feDistantLight>
<feFlood>
<feFuncA>
<feFuncB>
<feFuncG>
<feFuncR>
<feGaussianBlur>
<feImage>
<feMerge>
<feMergeNode>
<feMorphology>
<feOffset>
<fePointLight>
<feSpecularLighting>
<feSpotLight>
<feTile>
<feTurbulence>
<filter>
<font>
<font-face>
<font-face-format>
<font-face-name>
<font-face-src>
<font-face-uri>
<foreignObject>
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The stdDeviation
attribute defines the standard deviation for the blur operation.
You can use this attribute with the following SVG elements:
Example
<svg viewBox="0 0 480 200" xmlns="http://www.w3.org/2000/svg">
<filter id="gaussianBlur1">
<feGaussianBlur stdDeviation="1" />
</filter>
<filter id="gaussianBlur2">
<feGaussianBlur stdDeviation="5" />
</filter>
<filter id="gaussianBlur3" x="-30%" y="-30%" width="160%" height="160%">
<feGaussianBlur stdDeviation="10" />
</filter>
<circle cx="100" cy="100" r="50" style="filter: url(#gaussianBlur1);" />
<circle cx="100" cy="100" r="50" style="filter: url(#gaussianBlur2); transform: translateX(140px);" />
<circle cx="100" cy="100" r="50" style="filter: url(#gaussianBlur3); transform: translateX(280px);" />
</svg>
Usage notes
Value | <number-optional-number> |
---|---|
Default value | 0 |
Animatable | Yes |
<number-optional-number>
-
If two numbers are provided, the first number represents a standard deviation value along the x-axis. The second value represents a standard deviation along the y-axis. If one number is provided, then that value is used for both X and Y.
A negative value is forbidden. A value of zero disables the effect of the given filter primitive (i.e., the result is the filter input image). If
stdDeviation
is 0 in only one of X or Y, then the effect is that the blur is only applied in the direction that has a non-zero value.
Specifications
Specification | Status | Comment |
---|---|---|
Filter Effects Module Level 1 The definition of 'stdDeviation' in that specification. |
Working Draft | No change |
Scalable Vector Graphics (SVG) 1.1 (Second Edition) The definition of 'stdDeviation' in that specification. |
Recommendation | Initial definition |
Browser compatibility
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