itc.wat.h | R Documentation |
This function detects individual tree crowns using hierarchical watershed segmentation
itc.wat.h(chm.stack = NA, res = 1, ht2rad = NA, min.h = 1,
tolerance = 0.1, fun = max, num = TRUE, stacked = FALSE,
silent = FALSE, ws.plot = FALSE)
chm.stack |
Name of the CHM raster stack object output from a |
res |
Resolution of the input canopy height model in meters, used to adjust the ht2rad function. Defaults to 1. |
ht2rad |
Function used to convert tree height to crown radius. Defaults to NA. |
min.h |
Canopy minimum height. Defaults to 1. |
tolerance |
The minimum height between an object's highest point and the point where it contacts another object. If the height is smaller than the tolerance, the object will be combined with its highest neighbor. Defaults to 0.1. |
fun |
Function used to combine rasters of tree crown position. Defaults to max. |
num |
Boolean switch for the output of numeric values instead of a raster object. Defaults to TRUE. |
stacked |
Boolean switch for the output of a raster stack. Defaults to FALSE. |
silent |
Boolean switch for the interactive display of plots. Defaults to FALSE. |
ws.plot |
Boolean switch for the display of the watershed segmentation plot. Defaults to FALSE. |
The results of itc.wat.h
Adam Erickson, adam.erickson@ubc.ca
http://www.mdpi.com/2072-4292/4/4/950/htm
itc.wat.h(chm.stack=chms, res=1, ht2rad=function(x) 0.15746*x/res, min.h=1, tolerance=0.1, fun=max, num=TRUE, stacked=FALSE, silent=FALSE, ws.plot=FALSE)
itc.wat.h(chm.stack=chms, res=1, ht2rad=function(x) 0.15746*x/res, min.h=1, tolerance=0.1, fun=length, num=TRUE, stacked=FALSE, silent=FALSE, ws.plot=FALSE)
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