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measuRing

Detection and Control of Tree-Ring Widths on Scanned Image Sections

v0.5.2 · Nov 3, 2025 · GPL-3

Description

Identification of ring borders on scanned image sections from dendrochronological samples. Processing of image reflectances to produce gray matrices and time series of smoothed gray values. Luminance data is plotted on segmented images for users to perform both: visual identification of ring borders or control of automatic detection. Routines to visually include/exclude ring borders on the R graphical devices, or automatically detect ring borders using a linear detection algorithm. This algorithm detects ring borders according to positive/negative extreme values in the smoothed time-series of gray values. Most of the in-package routines can be recursively implemented using the multiDetect() function.

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Check History

OK 14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026

Dependency Network

Dependencies Reverse dependencies pastecs png tiff dplR measuRing

Version History

9 tracked
new 0.5.2 Mar 10, 2026
updated 0.5.2 ← 0.5.1 diff Nov 2, 2025
updated 0.5.1 ← 0.5 diff Mar 26, 2025
updated 0.5 ← 0.4.2 diff Feb 19, 2018
updated 0.4.2 ← 0.4.1 diff Jan 28, 2018
updated 0.4.1 ← 0.4 diff Jan 4, 2018
updated 0.4 ← 0.3 diff May 10, 2017
updated 0.3 ← 0.1 diff Mar 22, 2015
new 0.1 Sep 30, 2014