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the preserveAlpha attribute indicates how a <feConvolveMatrix> element handled alpha transparency.

A value of false indicates that the convolution matrix will apply to all channels, including the alpha channel. This is the default value.

A value of true indicates that the convolution matrix will only apply to the color channels.

Usage context

Categories None
Value true | false
Animatable Yes
Normative document SVG 1.1 (2nd Edition)



The following elements can use the preserveAlpha attribute

Document Tags and Contributors

Contributors to this page: Jeremie
Last updated by: Jeremie,