Operator Reference

Edges

List of Operators

close_edgesCloseEdgesclose_edgesCloseEdgesclose_edges: Close edge gaps using the edge amplitude image.

close_edges_lengthCloseEdgesLengthclose_edges_lengthCloseEdgesLengthclose_edges_length: Close edge gaps using the edge amplitude image.

derivate_gaussDerivateGaussderivate_gaussDerivateGaussderivate_gauss: Convolve an image with derivatives of the Gaussian.

diff_of_gaussDiffOfGaussdiff_of_gaussDiffOfGaussdiff_of_gauss: Approximate the LoG operator (Laplace of Gaussian).

edges_colorEdgesColoredges_colorEdgesColoredges_color: Extract color edges using Canny, Deriche, or Shen filters.

edges_color_sub_pixEdgesColorSubPixedges_color_sub_pixEdgesColorSubPixedges_color_sub_pix: Extract subpixel precise color edges using Deriche, Shen, or Canny filters.

edges_imageEdgesImageedges_imageEdgesImageedges_image: Extract edges using Deriche, Lanser, Shen, or Canny filters.

edges_sub_pixEdgesSubPixedges_sub_pixEdgesSubPixedges_sub_pix: Extract sub-pixel precise edges using Deriche, Lanser, Shen, or Canny filters.

frei_ampFreiAmpfrei_ampFreiAmpfrei_amp: Detect edges (amplitude) using the Frei-Chen operator.

frei_dirFreiDirfrei_dirFreiDirfrei_dir: Detect edges (amplitude and direction) using the Frei-Chen operator.

highpass_imageHighpassImagehighpass_imageHighpassImagehighpass_image: Extract high frequency components from an image.

info_edgesInfoEdgesinfo_edgesInfoEdgesinfo_edges: Return the filter coefficients of a filter in edges_imageedges_imageEdgesImageEdgesImageedges_image.

kirsch_ampKirschAmpkirsch_ampKirschAmpkirsch_amp: Detect edges (amplitude) using the Kirsch operator.

kirsch_dirKirschDirkirsch_dirKirschDirkirsch_dir: Detect edges (amplitude and direction) using the Kirsch operator.

laplaceLaplacelaplaceLaplacelaplace: Calculate the Laplace operator by using finite differences.

laplace_of_gaussLaplaceOfGausslaplace_of_gaussLaplaceOfGausslaplace_of_gauss: LoG-Operator (Laplace of Gaussian).

prewitt_ampPrewittAmpprewitt_ampPrewittAmpprewitt_amp: Detect edges (amplitude) using the Prewitt operator.

prewitt_dirPrewittDirprewitt_dirPrewittDirprewitt_dir: Detect edges (amplitude and direction) using the Prewitt operator.

robertsRobertsrobertsRobertsroberts: Detect edges using the Roberts filter.

robinson_ampRobinsonAmprobinson_ampRobinsonAmprobinson_amp: Detect edges (amplitude) using the Robinson operator.

robinson_dirRobinsonDirrobinson_dirRobinsonDirrobinson_dir: Detect edges (amplitude and direction) using the Robinson operator.

sobel_ampSobelAmpsobel_ampSobelAmpsobel_amp: Detect edges (amplitude) using the Sobel operator.

sobel_dirSobelDirsobel_dirSobelDirsobel_dir: Detect edges (amplitude and direction) using the Sobel operator.