graySmoothed: Smoothed gray

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

Description

Averaging, detrending, and smoothing of the columns in a gray matrix.

Usage

graySmoothed(image, all = FALSE, ...)

Arguments

image	character or matrix. Either path of an image section or an array representing a gray matrix.
all	logical. If TRUE the column numbers and moving averages are added to the output.
...	arguments to be passed to imageTogray.

Value

data frame with the smoothed grays. If all is TRUE then the output is extended with the columns in gray matrix, and moving averages.

Author(s)

Wilson Lara, Carlos Sierra, Felipe Bravo

Examples

## (not run) Read one image section in package measuRing:
image1 <- system.file("P105_a.png", package="measuRing")    
## (not run) the smoothed gray:
smoothed <- graySmoothed(image1,ppi=1000)
## (not run) Plot of the smoothed gray:        
Smooth <- ts(smoothed)
main. <- 'Smoothed gray'
plot(Smooth,xlab = 'Column', main=main.,
     ylab = 'Smoothed gray',col = 'gray')

measuRing documentation built on May 2, 2019, 12:48 p.m.