R: Apply a matrix transformation on colour values.

feColorMatrix {gridSVG}

R Documentation

Apply a matrix transformation on colour values.

Description

This filter applies a matrix transformation on the RGBA colour and alpha values of every pixel on the input graphics to produce a result with a new set of RGBA colour and alpha values.

Usage

feColorMatrix(input = NA,
              type = c("matrix", "saturate",
                       "hueRotate", "luminanceToAlpha"),
              values = NULL, ...)

Arguments

`input`	Identifies an input for this filter primtive. See `filterInputs`.
`type`	Indicates the type of matrix operation. The keyword `"matrix"` indicates that a full 5x4 matrix of values will be provided. The other keywords represent convenience shortcuts to allow commonly used color operations to be performed without specifying a complete matrix.
`values`	The contents of `values` depend on what `type` is: `matrix` A 5x4 matrix of numeric values. `saturate` A single element numeric vector whose value is between 0 and 1. `hueRotate` A single element numeric vector whose value represents degrees. `luminanceToAlpha` Should be left as `NULL` as there are no applicable values.
`...`	Further arguments to be passed onto `fe`.

Details

For more information about this primitive, consult the reference to the SVG specification.

Value

An fe.color.matrix object.

Author(s)

Simon Potter

References

https://www.w3.org/TR/SVG/filters.html#feColorMatrixElement