k1
The k1
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:
Example
<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="0" k3="0" k4="0" /> </filter> <filter id="composite2" x="0" y="0" width="100%" height="100%"> <feComposite in2="SourceGraphic" operator="arithmetic" k1="10" k2="0" 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>
Usage notes
Value | <number> |
---|---|
Default value | 0 |
Animatable | Yes |
Specifications
Specification | Status | Comment |
---|---|---|
Filter Effects Module Level 1 The definition of 'k1' in that specification. |
Working Draft | No change |
Scalable Vector Graphics (SVG) 1.1 (Second Edition) The definition of 'k1' in that specification. |
Recommendation | Initial definition |
Browser compatibility
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
k1 |
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/k1