| measuRing-package {measuRing} | R Documentation |
Detection and Control of Tree-Ring Widths on Scanned Image Sections
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.
Details
The DESCRIPTION file:
| 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 <wilarhen@gmail.com> |
| 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 |
Index of help topics:
colNarrow Narrow rings
crossRings dplR crossdating
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 Sections
multiDetect Multiple detection of TRWs
plotSegments Image segments
reduceList ring-width object reduction
ringBorders Ring borders
ringDetect Single Detection of TRWs
ringSelect Visual selection
ringWidths Ring widths
Maintainer: Wilson Lara <wilarhen@gmail.com>
Author(s)
Wilson Lara, Carlos Sierra, Felipe Bravo