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coglyphr: Compute Glyph Centers of Gravity from Image Data

Overview

coglyphr is an R package for computing the center of gravity (COG) of character-like binary images using various methods. It is useful for analyzing glyph structures in fields such as image-based research on cognition and perception.

The current version supports the following COG computation methods:

  • Stroke-based COG (cog_stroke)
  • Contour-based COG (cog_contour), based on the method proposed by Kotani and colleagues (2004, 2011)
  • Potential energy-based COG (cog_potential), based on the method proposed by Kotani and colleagues (2006)

For details on each function, refer to the function references.

Installation

You can install coglyphr from GitHub using devtools:

# Install devtools if not already installed
if (!requireNamespace("devtools", quietly = TRUE)) install.packages("devtools")

# Install coglyphr
devtools::install_github("mutopsy/coglyphr")

Dependencies

This package requires:
* R (>= 4.4.0)
* dplyr
* imager
* sp

Usage

After installation, you can load this package using the library function.

Version History

v0.0.0.9000 (2025-07-13)

  • Initial developer version

References