measuRing

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

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.

Total

12,250

Last month

383

Last week

85

Average per day

13

Daily downloads

Total downloads

Description file content

Package
measuRing
Type
Package
Title
Detection and Control of Tree-Ring Widths on Scanned Image Sections
Version
0.5
Author
Wilson Lara, Carlos Sierra, Felipe Bravo
Date
2018-02-11
Maintainer
Wilson Lara
Imports
pastecs, png, tiff, dplR
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.
License
GPL-3
LazyData
TRUE
NeedsCompilation
no
Packaged
2018-02-20 15:02:58 UTC; wilar
Repository
CRAN
Date/Publication
2018-02-20 15:15:55 UTC

install.packages('measuRing')

0.5

a year ago

Wilson Lara

GPL-3

Imports

pastecs, png, tiff, dplR

Discussions