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annotator provides functions to create image annotations
through polygon outlining. Annotator has the same function as
graphics::locator() but achieves its purpose through
drawing, rather than multiple mouse clicks.
annotator is based on fabric.js, a Javascript HTML5 canvas
library and htmlwidgets, a
package that provides a framework for creating R bindings to JavaScript
libraries.
The main function of the package is
annotate(path_to_image). Polygons can be outlined on the
image and polygon’s coordinates are returned after each draw.
annotator makes it easy to create annotation pipelines
in shiny. A minimal Shiny app
demonstrating a simple pipeline can be found on shinyapps.io.
Stable version from CRAN:
install.packages("annotator")Developement version from GITHUB:
remotes::install_github("valcu/annotator")These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
Health stats visible at Monitor.