Attribute

Value

Meaning

x, y

Coordinate

The minimum x-coordinate & y-coordinate for the subregion which restricts calculation and rendering of the given filter primitive.

width, height

Unit of length

The width & height of the subregion which restricts calculation and rendering of the given filter primitive.

result

Filter primitive ID

Assigned name for this filter primitive.

If supplied, the graphics that result from processing this filter primitive can be referenced by an "in" attribute on a subsequent filter primitive within the same <filter> element.

If no value is provided, the output will only be available for re-use as the implicit input into the next filter primitive if that filter primitive provides no value for its "in" attribute.

in

SourceGraphic| SourceAlpha| BackgroundImage| BackgroundAlpha| FillPaint| StrokePaint

Identifies input for the given filter primitive.

The value can be either one of six keywords or can be a string which matches a previous result attribute value within the same <filter> element.