{ "_id": "6addd8f3d397586f5b213c04", "Package": "coiR", "Type": "Package", "Title": "Analysis of Canopy Openness Index from Fisheye Images", "Version": "0.1.0", "Authors@R": "c(\nperson(\n\"Edson Nilton de Moura Silva-Júnior\",\nemail = \"edsonbbiologia@gmail.com\",\nrole = c(\"aut\", \"cre\")\n)\n)", "Description": "Tools to estimate the Canopy Openness Index (COI) from\nhemispherical (fisheye) canopy photographs. The package imports\ncanopy images, crops them to the circular area delimited by the\nfisheye lens, binarizes them to separate sky from vegetation\npixels, and computes the index as the proportion of sky pixels\nin the cropped image. Canopy openness is a measure related to\ncanopy closure, canopy cover and understorey illumination, as\ndiscussed in Jennings, Brown and Sheil (1999) \"Assessing forest\ncanopies and understorey illumination: canopy closure, canopy\ncover and other measures\" .\nExample canopy images are included so users can test the\nworkflow.", "URL": "https://github.com/Edbbioeco/coiR", "BugReports": "https://github.com/Edbbioeco/coiR/issues", "License": "MIT + file LICENSE", "Encoding": "UTF-8", "Config/testthat/edition": "3", "Config/roxygen2/version": "8.1.0", "Config/pak/sysreqs": "libabsl-dev cmake libgdal-dev gdal-bin libgeos-dev\nlibicu-dev libssl-dev libproj-dev libsqlite3-dev\nlibudunits2-dev", "Repository": "https://edbbioeco.r-universe.dev", "Date/Publication": "2026-10-24 22:03:50 UTC", "RemoteUrl": "https://github.com/edbbioeco/coir", "RemoteRef": "HEAD", "RemoteSha": "19b3e4f1fe220764061e8598ba33696f4eb439dd", "NeedsCompilation": "no", "Packaged": { "Date": "2026-10-25 10:21:19 UTC", 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