The stdDeviation
attribute defines the standard deviation for the blur operation. If two <number>s 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.
If the attribute is not specified, then the effect is as if a value of 0 were specified.
Categories | None |
---|---|
Value | <number-optional-number> |
Animatable | Yes |
Normative document | SVG 1.1 (2nd Edition) |
A pair of <number>s, where the second <number> is optional.
number-optional-number ::= number | number, number
In the SVG DOM, a <number-optional-number> is represented using a pair of SVGAnimatedInteger
or SVGAnimatedNumber
objects.
The following elements can use the stdDeviation
attribute
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/stdDeviation