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

Description Usage Arguments Value Author(s) Examples

Function for developing linear detection of ring borders.

1	linearDetect(smoothed, origin = 0, darker = TRUE)

`smoothed`	a data frame with smoothed grays such as that produced by `graySmoothed`.
`origin`	numeric. an origin in smoothed gray to find the ring borders.
`darker`	logical. If TRUE the algorithm uses the negative extremes on smoothed grays to detect the ring borders. If FALSE the possitive extremes are used.

vector with column numbers in gray matrix of the detected ring borders (see grayDarker, and graySmoothed).

Wilson Lara, Carlos Sierra, Felipe Bravo

## (not run) Read one image section in package measuRing:
image1 <- system.file("P105_a.tif", package="measuRing")    
## (not run) smoothed gray:
smoothed <- graySmoothed(image1)
## linear detection:
borders <- linearDetect(smoothed)
str(borders)