Matrix Arithmatic

library(magick)

## Warning: package 'magick' was built under R version 4.2.2

## Linking to ImageMagick 6.9.12.3
## Enabled features: cairo, freetype, fftw, ghostscript, heic, lcms, pango, raw, rsvg, webp
## Disabled features: fontconfig, x11

inp_img <- image_read("http://polytopes.net/Tora_color.png")

image_info(inp_img)

##   format width height colorspace matte filesize density
## 1    PNG    77    133       sRGB  TRUE    22377   28x28

image_info(inp_img)

##   format width height colorspace matte filesize density
## 1    PNG    77    133       sRGB  TRUE    22377   28x28

plot(inp_img)

mod_img <- image_modulate(inp_img, brightness = 120, saturation = 20,
hue = 20)

plot(mod_img)