palette_extract: Extract Hexadecimal Codes from an Image

In njlyon0/lterpalettefinder: Extract Color Palettes from Photos and Pick Official LTER Palettes

Extract Hexadecimal Codes from an Image

Description

Retrieves hexadecimal codes for the colors in an image file. Currently only PNG, JPEG, TIFF, and HEIC files are supported. The function automatically removes dark colors and removes 'similar' colors to yield 25 colors from which you can select the subset that works best for your visualization needs. Note that photos that are very dark may return few viable colors.

Usage

palette_extract(image, sort = FALSE, progress_bar = TRUE)

Arguments

image	(character) Name/path to PNG, JPEG, TIFF, or HEIC file from which to extract colors
sort	(logical) Whether extracted HEX codes should be sorted by hue and saturation
progress_bar	(logical) Whether to 'message' a progress bar

Value

(character) Vector containing all hexadecimal codes remaining after extraction and removal of 'dark' and 'similar' colors

Examples

# Extract colors from a supplied image
my_colors <- palette_extract(image = system.file("extdata", "lyon-fire.png",
package = "lterpalettefinder"), sort = TRUE, progress_bar = FALSE)
       
# Plot that result
palette_demo(palette = my_colors)

njlyon0/lterpalettefinder documentation built on July 5, 2023, 3:39 a.m.