imgFreiChen {biOps}R Documentation

Frei-Chen Edge Detection Method

Description

This function enhaces image's edges by convoluting with the Frei-Chen method matrices:
H_r H_c
1 0 -1 || -1 -sqrt(2) -1
sqrt(2) 0 -sqrt(2) || 0 0 0
1 0 -1 || 1 sqrt(2) 1

Usage

imgFreiChen(imgdata)

Arguments

imgdata The image

Value

return an imagedata object

Examples

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

[Package biOps version 0.2.1 Index]