standCount: Calculating stand account for each plot

In angel30mpa/ampa: FIELDimageR: A R Package to Analyze Orthomosaic Images from Agricultural Field Trials

Description

The mask from function fieldMask() is used to identify the number of plants per plot.

Usage

  standCount(mosaic, fieldShape, value=0, minSize=0.01, n.core=NULL, pch=16, cex=0.7, col="red")

Arguments

mosaic	object mask of class stack from the function fieldMask().
fieldShape	plot shape file, please use first the function fieldAttributes().
value	referent value to vegetation pixels in the mask. If "HUE" was used on fieldMask() the value=0.
minSize	used to set the minimum size percentage of plant canopy (to remove weeds and more).
n.core	number of cores to use for multicore processing (Parallel).
pch	point symbol, please check help("points").
cex	character (or symbol) expansion: a numerical vector, please check help("points").
col	color code or name, please check help("points").

Details

The function returns a vector with the number of plants per plot, a new shapeFile and a new mosaic with Watershed layer.

Value

Number of plants per plot represented in DataFrame, new shapeFile with stand count, Watershed layer, plants canopy per plot, and plants position in the image.

References

Matias et al. (2019) FIELDimageR: A R Package to Analyze Orthomosaic Images from Agricultural Field Trials. (submitted)

Examples

  ##see Vignette at https://github.com/filipematias23/FIELDimageR

angel30mpa/ampa documentation built on Feb. 22, 2020, 12:17 a.m.