sobel.h {rimage}R Documentation

sobel filter to extract horizontal edges

Description

This function calculates an image which sobel filter is applied. It extracts horizontal edges only. It is faster than sobel.h extremely because utilization of a C routine.

Usage

sobel.h(img)

Arguments

img a matrix representing target image

Value

a matrix representing the image after horizontal sobel filter is applied

See Also

sobel.v,sobel

Examples

  data(logo)
  plot(normalize(sobel.h(logo)))

[Package rimage version 0.5-7 Index]