createTarget: Create a target image (RasterStack) from a polygon.

In patternize: Quantification of Color Pattern Variation

Create a target image (RasterStack) from a polygon.

Description

Create a target image (RasterStack) from a polygon.

Usage

createTarget(
  outline,
  image,
  res = 300,
  colorFill = "black",
  colorBG = "white",
  sigma = 10,
  plot = FALSE
)

Arguments

outline	xy coordinates that define outline.
image	Image imported as RasterStack used in the analysis. This is used to extract the extent and dimensions for the raster layers.
res	Resolution for RasterStack (default = 300).
colorFill	Color for the fill of the polygon (default = 'black').
colorBG	Color for the background (default = 'white').
sigma	Size of sigma for Gaussian blurring (default = 10).
plot	Whether to plot the created target image (default = FALSE).

Value

RasterStack

Examples

## Not run: 
outline_BC0077 <- read.table(paste(system.file("extdata",  package = 'patternize'),
'/BC0077_outline.txt', sep=''), header = FALSE)

data(imageList)

target <- createTarget(outline_BC0077, imageList[[1]], plot =  TRUE)

## End(Not run)

patternize documentation built on Aug. 22, 2023, 5:07 p.m.