SVG feColorMatrix Element

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# SVG feColorMatrix Element

Complete SVG Reference

## Definition and Usage

The SVG feColorMatrix element is used to apply a matrix transformation.

The type attribute defines the type of matrix operation. The type attribute can take one of the following values:

- matrix
- saturate
- hueRotate
- luminanceToAlpha

The value attribute's value depends on the value of the type attribute:

- For type="matrix", values is a list of 20 matrix values
- For type="saturate", values is a single real number value (0 to 1)
- For type="hueRotate", values is a single one real number value (degrees)
- For type="luminanceToAlpha", values is not applicable

### Example 1

The following example shows examples of the four types of feColorMatrix operations.

Copy the following code into Notepad and save the file as "fecolormatrix_1.svg". Place the file in your Web directory:

    <?xml version="1.0" standalone="no"?>
    <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
    "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">

    <svg width="100%" height="100%" version="1.1"
    xmlns="http://www.w3.org/2000/svg">

    <defs>
    <linearGradient id="MyGrad" gradientUnits="userSpaceOnUse"
    x1="100" y1="0" x2="500" y2="0">
    <stop offset="0" style="stop-color:#ff00ff"/>
    <stop offset=".33" style="stop-color:#88ff88"/>
    <stop offset=".67" style="stop-color:#2020ff"/>
    <stop offset="1" style="stop-color:#d00000"/>
    </linearGradient>
    <filter id="Matrix">
    <feColorMatrix type="matrix"
    values="1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 1 0"/>
    </filter>
    <filter id="Saturate">
    <feColorMatrix type="saturate" values="0.4"/>
    </filter>
    <filter id="HueRotate">
    <feColorMatrix type="hueRotate" values="90"/>
    </filter>
    <filter id="Luminance">
    <feColorMatrix type="luminanceToAlpha" result="a"/>
    <feComposite in="SourceGraphic" in2="a" operator="in"/>
    </filter>
    </defs>

    <g style="font-size:50;fill:url(#MyGrad)">
    <text x="50" y="60">Unfiltered</text>
    <text x="50" y="120" style="filter:url(#Matrix)">Matrix
    </text>
    <text x="50" y="180" style="filter:url(#Saturate)">Saturate
    </text>
    <text x="50" y="240" style="filter:url(#HueRotate)">HueRotate
    </text>
    <text x="50" y="300" style="filter:url(#Luminance)">Luminance
    </text>
    </g>
    </svg>

View example

Complete SVG Reference

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