To cite package ‘colorizer’ in publications use:

Zumbach D (2020). colorizer: Colorize Old Images Using the 'DeOldify' Image Colorization API. R package version 0.1.0, https://github.com/zumbov2/colorizer.

Corresponding BibTeX entry:

  @Manual{,
    title = {colorizer: Colorize Old Images Using the 'DeOldify' Image
      Colorization API},
    author = {David Zumbach},
    year = {2020},
    note = {R package version 0.1.0},
    url = {https://github.com/zumbov2/colorizer},
  }