interactive_canny: interactive canny edge detection

In magickGUI: GUI Tools for Interactive Image Processing with 'magick'

interactive canny edge detection

Description

Using image_canny of 'magick' interactively. radius, sigma, lower%, and upper% are parameters of image_canny. See reference manual of 'magick' for detail.

Usage

interactive_canny(
  image,
  range_max_radius = 30,
  range_max_sigma = 2,
  resolution = 0.1,
  return_param = FALSE,
  scale
)

Arguments

image	a magick image object
range_max_radius	define maximum in slider of radius. must be positive.
range_max_sigma	define maximum in slider of sigma. must be positive.
resolution	resolution of slider
return_param	If return_param is TRUE, returns values of radius, sigma, lower%, and upper% represented in the format of 'magick'. If return_param is FALSE, returns a magick image object.
scale	geometry to be passed to image_scale function of magick package. image is scaled just for preview and result image is not scaled if scale is given.

Value

a magick image object or values of radius, sigma, lower%, and upper% represented in the format of 'magick'

Author(s)

Shota Ochi

Examples

if (interactive())
{
  interactive_canny(wizard)
}

magickGUI documentation built on Sept. 11, 2023, 5:06 p.m.