changeImageBg

Function to change the background color of a magick image plot to another color

Usage

changeImageBg(
  mg_object,
  bg_color,
  perc_range = 10,
  new_color = "#FFFFFF",
  new_name = NULL
)

Arguments

mg_object

magick image or giotto image object

bg_color

estimated current background color

perc_range

range around estimated background color to include (percentage)

new_color

new background color

new_name

change name of Giotto image

Value

magick image or giotto image object with updated background color

Examples

g <- GiottoData::loadGiottoMini("visium")
#> 1. read Giotto object
#> 2. read Giotto feature information
#> 3. read Giotto spatial information
#> 4. read Giotto image information
#> python already initialized in this session
#>  active environment : '/usr/bin/python3'
#>  python version : 3.12
g_image <- convertGiottoLargeImageToMG(g,
    largeImage_name = "image",
    return_gobject = FALSE
)
#> Error in loadNamespace(x): there is no package called ‘magick’

changeImageBg(mg_object = g_image, bg_color = "white")
#> Error: object 'g_image' not found