The k2 attribute defines one of the values to be used within the arithmetic operation of the <feComposite> filter primitive.
The pixel composition is computed using the following formula:
result = k1 * i1 * i2 + k2 * i1 + k3 * i2 + k4;
You can use this attribute with the following SVG elements:
<svg viewBox="0 0 420 200" xmlns="http://www.w3.org/2000/svg">
<filter id="composite1" x="0" y="0" width="100%" height="100%">
<feComposite
in2="SourceGraphic"
operator="arithmetic"
k1="1"
k2="1"
k3="0"
k4="0" />
</filter>
<filter id="composite2" x="0" y="0" width="100%" height="100%">
<feComposite
in2="SourceGraphic"
operator="arithmetic"
k1="1"
k2="10"
k3="0"
k4="0" />
</filter>
<image
href="mdn.svg"
x="0"
y="0"
width="200"
height="200"
style="filter: url(#composite1);" />
<image
href="mdn.svg"
x="0"
y="0"
width="200"
height="200"
style="filter: url(#composite2); transform: translateX(220px);" />
</svg>
| Value | <number> |
|---|---|
| Default value | 0 |
| Animatable | Yes |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
k2 |
1 | ≤79 | Yes | Yes | 15 | Yes | Yes | Yes | Yes | 14 | Yes | 1.5 |
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https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/k2