This filter reduces the number of colours in your layer and uses the Floyd-Steinberg algorithm to even out the error introduced by the colour reduction.
with_dither(x, max_colours = 256, colourspace = "sRGB", ...)Arguments
- x
A ggplot2 layer object, a ggplot, a grob, or a character string naming a filter
- max_colours
The maximum number of colours to use. The result may contain fewer colours but never more.
- colourspace
In which colourspace should the dithering be calculated
- ...
Arguments to be passed on to methods. See the documentation of supported object for a description of object specific arguments.
Value
Depending on the input, either a grob, Layer, list of Layers,
guide, or element object. Assume the output can be used in the same
context as the input.
See also
Other dithering filters:
with_circle_dither()
Examples
library(ggplot2)
ggplot(faithfuld, aes(waiting, eruptions)) +
with_dither(
geom_raster(aes(fill = density), interpolate = TRUE),
max_colours = 10
) +
scale_fill_continuous(type = 'viridis')
