R: Image

image {raster} | R Documentation

## Image

### Description

Create an "image" type plot of a RasterLayer. This is an implementation of a generic function in the graphics package. In most cases the `plot` function would be preferable because it produces a legend (and has some additional options).

### Usage

    image(x, ...)
    ## S4 method for signature 'RasterLayer'
    image(x, maxpixels=500000, useRaster=TRUE, ...)

    ## S4 method for signature 'RasterStackBrick'
    image(x, y=1, maxpixels=100000, useRaster=TRUE, main, ...)

### Arguments

`x` | Raster* object
`maxpixels` | integer > 0. Maximum number of cells to use for the plot. If `maxpixels < ncell(x)`, `sampleRegular` is used before plotting
`useRaster` | If `TRUE`, the rasterImage function is used for plotting. Otherwise the image function is used. This can be useful if rasterImage does not work well on your system (see note)
`main` | character. Main plot title
`...` | Any argument that can be passed to `image` (graphics package)
`y` | If `x` is a RasterStack or RasterBrick: integer, character (layer name(s)), or missing to select which layer(s) to plot

### Note

raster uses `rasterImage` from the graphics package. For unknown reasons this does not work on Windows Server and on a few versions of Windows XP. On that system you may need to use argument `useRaster=FALSE` to get a plot.

### See Also

`plot`, `image`, `contour`

### Examples

    r <- raster(system.file("external/test.grd", package="raster"))
    image(r)

[Package raster version 3.3-7 Index]