imgCanny: Canny Edge Detection Method

Description Usage Arguments Value Note Examples

Description

This function does edge detection using the Canny algorithm.

Usage

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imgCanny(imgdata, sigma, low=0, high=-1)

Arguments

imgdata

The image

sigma

The standard deviation used for the gaussian smoothing convolution

low

The lower threshold for hysteresis

high

The higher threshold for hysteresis

Value

return an imagedata object

Note

If not specified, the low and high parameters are estimated based in a histogram of the image.

Examples

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	## Not run: 
		x <- readJpeg(system.file("samples", "violet.jpg", package="biOps"))
		y <- imgCanny(x, 0.7)
	
## End(Not run)

matiasb/biOps documentation built on May 21, 2019, 12:55 p.m.