To cite package ‘SSIMmap’ in publications use:

Ha H, Long J (2026). SSIMmap: The Structural Similarity Index Measure for Maps. R package version 0.4.0, https://github.com/hailyee-ha/ssimmap.

Corresponding BibTeX entry:

  @Manual{,
    title = {SSIMmap: The Structural Similarity Index Measure for
      Maps},
    author = {Hui Jeong (Hailyee) Ha and Jed Long},
    year = {2026},
    note = {R package version 0.4.0},
    url = {https://github.com/hailyee-ha/ssimmap},
  }