Mosaic to RGB — mosaic_to

Convert an SpatRaster to a three-band RGB image of class Image.

Usage

mosaic_to_rgb(mosaic, r = 3, g = 2, b = 1, coef = 0, plot = TRUE)

Arguments

mosaic: A mosaic of class SpatRaster, generally imported with mosaic_input().
r: The layer for the Red band (default: 3).
g: The layer for the Green band (default: 2).
b: The layer for the Blue band (default: 1).
coef: An addition coefficient applied to the resulting object. This is useful to adjust the brightness of the final image. Defaults to 0.
plot: Logical, whether to display the resulting RGB image (default: TRUE).

Value

A three-band RGB image represented as a pliman (EBImage) object.

Details

This function converts SpatRaster that contains the RGB bands into a three-band RGB image using pliman (EBImage). It allows you to specify the band indices for the red, green, and blue channels, as well as apply a scaling coefficient to the final image. By default, the resulting RGB image is displayed, but this behavior can be controlled using the plot parameter.

Examples

library(pliman)
# Convert a mosaic raster to an RGB image and display it
mosaic <- mosaic_input(system.file("ex/elev.tif", package="terra"))

# Convert a mosaic raster to an RGB image without displaying it
rgb_image <- mosaic_to_rgb(c(mosaic * 2, mosaic - 0.3, mosaic * 0.8))
plot(rgb_image)