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

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Identification of ring borders on scanned image sections from dendrochronological samples. Processesing of image reflectances to produce gray matrices and a 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 device, 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.

Author
Wilson Lara, Carlos Sierra, Felipe Bravo
Date of publication
2015-03-23 10:49:59
Maintainer
Wilson Lara <wilarhen@gmail.com>
License
GPL-3
Version
0.3

View on CRAN

Man pages

colNarrow
Narrow rings
dataSegments
Data segments
grayDarker
Gray extremes
graySmoothed
Smoothed gray
imageTogray
Gray matrix
lagIngray
First-local lag
linearDetect
Linear detection
measuRing-package
Detection and Control of Tree-Ring Widths on Scanned Image...
multiDetect
Multiple detection
plotSegments
Image segments
ringBorders
Ring borders
ringDetect
Single detection
ringSelect
Visual selection
ringWidths
Ring widths

Files in this package

measuRing
measuRing/inst
measuRing/inst/P105_a.png
measuRing/inst/P105_c.tif
measuRing/inst/P105_a.tif
measuRing/inst/P105_d.tif
measuRing/inst/P105_b.tif
measuRing/NAMESPACE
measuRing/NEWS
measuRing/R
measuRing/R/plotSegments.R
measuRing/R/ringBorders.R
measuRing/R/grayDarker.R
measuRing/R/ringSelect.R
measuRing/R/colNarrow.R
measuRing/R/graySmoothed.R
measuRing/R/linearDetect.R
measuRing/R/ringDetect.R
measuRing/R/multiDetect.R
measuRing/R/lagIngray.R
measuRing/R/ringWidths.R
measuRing/R/imageTogray.R
measuRing/R/dataSegments.R
measuRing/MD5
measuRing/DESCRIPTION
measuRing/man
measuRing/man/linearDetect.Rd
measuRing/man/grayDarker.Rd
measuRing/man/plotSegments.Rd
measuRing/man/imageTogray.Rd
measuRing/man/ringDetect.Rd
measuRing/man/lagIngray.Rd
measuRing/man/ringWidths.Rd
measuRing/man/graySmoothed.Rd
measuRing/man/multiDetect.Rd
measuRing/man/measuRing-package.Rd
measuRing/man/ringBorders.Rd
measuRing/man/dataSegments.Rd
measuRing/man/ringSelect.Rd
measuRing/man/colNarrow.Rd