feColorMatrix
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since 2015年7月.
该滤镜基于转换矩阵对颜色进行变换。每一像素的颜色值 (一个表示为 [红，绿，蓝，透明度] 的矢量) 都经过矩阵乘法 (matrix multiplated) 计算出的新颜色。
使用上下文
示例
html
<svg
width="100%"
height="100%"
viewBox="0 0 150 360"
preserveAspectRatio="xMidYMid meet"
xmlns="http://www.w3.org/2000/svg"
xmlns:xlink="http://www.w3.org/1999/xlink">
<text x="70" y="50">Reference</text>
<g>
<circle cx="30" cy="30" r="20" fill="blue" fill-opacity="0.5" />
<circle cx="20" cy="50" r="20" fill="green" fill-opacity="0.5" />
<circle cx="40" cy="50" r="20" fill="red" fill-opacity="0.5" />
</g>
<text x="70" y="120">matrix</text>
<filter id="colorMeMatrix">
<feColorMatrix
in="SourceGraphic"
type="matrix"
values="0 0 0 0 0
1 1 1 1 0
0 0 0 0 0
0 0 0 1 0" />
</filter>
<g filter="url(#colorMeMatrix)">
<circle cx="30" cy="100" r="20" fill="blue" fill-opacity="0.5" />
<circle cx="20" cy="120" r="20" fill="green" fill-opacity="0.5" />
<circle cx="40" cy="120" r="20" fill="red" fill-opacity="0.5" />
</g>
<text x="70" y="190">saturate</text>
<filter id="colorMeSaturate">
<feColorMatrix in="SourceGraphic" type="saturate" values="0.2" />
</filter>
<g filter="url(#colorMeSaturate)">
<circle cx="30" cy="170" r="20" fill="blue" fill-opacity="0.5" />
<circle cx="20" cy="190" r="20" fill="green" fill-opacity="0.5" />
<circle cx="40" cy="190" r="20" fill="red" fill-opacity="0.5" />
</g>
<text x="70" y="260">hueRotate</text>
<filter id="colorMeHueRotate">
<feColorMatrix in="SourceGraphic" type="hueRotate" values="180" />
</filter>
<g filter="url(#colorMeHueRotate)">
<circle cx="30" cy="240" r="20" fill="blue" fill-opacity="0.5" />
<circle cx="20" cy="260" r="20" fill="green" fill-opacity="0.5" />
<circle cx="40" cy="260" r="20" fill="red" fill-opacity="0.5" />
</g>
<text x="70" y="320">luminanceToAlpha</text>
<filter id="colorMeLTA">
<feColorMatrix in="SourceGraphic" type="luminanceToAlpha" />
</filter>
<g filter="url(#colorMeLTA)">
<circle cx="30" cy="310" r="20" fill="blue" fill-opacity="0.5" />
<circle cx="20" cy="330" r="20" fill="green" fill-opacity="0.5" />
<circle cx="40" cy="330" r="20" fill="red" fill-opacity="0.5" />
</g>
</svg>
该示例渲染效果如下所示：
属性
全局属性
专有属性
DOM 接口
该元素实现 SVGFEColorMatrixElement 接口。