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---
title: kernelMatrix
slug: Web/SVG/Attribute/kernelMatrix
page-type: svg-attribute
browser-compat: svg.elements.feConvolveMatrix.kernelMatrix
---
{{SVGRef}}
The **`kernelMatrix`** attribute defines the list of numbers that make up the kernel matrix for the {{SVGElement("feConvolveMatrix")}} element.
Values are separated by space characters and/or a comma. The number of entries in the list must equal to `<orderX>` by `<orderY>` as defined in the {{SVGAttr("order")}} attribute.
You can use this attribute with the following SVG elements:
- {{SVGElement("feConvolveMatrix")}}
## Example
```css hidden
html,
body,
svg {
height: 100%;
}
```
```html
<svg viewBox="0 0 420 200" xmlns="http://www.w3.org/2000/svg">
<filter id="convolveMatrix1" x="0" y="0" width="100%" height="100%">
<feConvolveMatrix kernelMatrix="1 1 0 0 0 0 0 0 -1" />
</filter>
<filter id="convolveMatrix2" x="0" y="0" width="100%" height="100%">
<feConvolveMatrix kernelMatrix="-1 0 0 0 0 0 0 0 1" />
</filter>
<image
href="mdn_logo_only_color.png"
width="200"
height="200"
style="filter:url(#convolveMatrix1);" />
<image
href="mdn_logo_only_color.png"
width="200"
height="200"
style="filter:url(#convolveMatrix2); transform:translateX(220px);" />
</svg>
```
{{EmbedLiveSample("Example", "420", "200")}}
## Usage notes
<table class="properties">
<tbody>
<tr>
<th scope="row">Value</th>
<td>
<code
><a href="/en-US/docs/Web/SVG/Content_type#list-of-ts"
><list of numbers></a
></code
>
</td>
</tr>
<tr>
<th scope="row">Default value</th>
<td><em>None</em></td>
</tr>
<tr>
<th scope="row">Animatable</th>
<td>Yes</td>
</tr>
</tbody>
</table>
- `<list of numbers>`
- : The list of {{cssxref("number")}}s that make up the kernel matrix for the convolution. Values are separated by space characters and/or a comma. The number of entries in the list must equal `<orderX>` times `<orderY>`.
If the result of `orderX` \* `orderY` is not equal to the number of entries in the value list, the filter primitive acts as a pass through filter.
## Specifications
{{Specifications}}
## Browser compatibility
{{Compat}}