Table of Contents of Filter/Edges

close_edges1 Close edge gaps using the edge amplitude image.
close_edges2 Close edge gaps using the edge amplitude image.
derivate_gauss Convolve an image with derivatives of the Gaussian.
detect_edges1 Detect straight edge segments.
diff_of_gauss__ Approximate the LoG operator (Laplace of Gaussian).
edges__ Extract edges using Deriche, Shen, or Canny filters.
edges_sub_pix Extract sub-pixel precise edges using Deriche, Shen, or Canny filters.
frei_amp Detect edges (amplitude) using the Frei-Chen operator.
frei_dir Detect edges (amplitude and direction) using the Frei-Chen operator.
highpass__ Extract high frequency components from an image.
info_edges Estimate the width of a filter in edges__.
kirsch_amp Detect edges (amplitude) using the Kirsch operator.
kirsch_dir Detect edges (amplitude and direction) using the Kirsch operator.
laplace__ Calculate the Laplace operator by using finite differences.
laplace_of_gauss LoG-Operator (Laplace of Gaussian).
prewitt_amp Detect edges (amplitude) using the Prewitt operator.
prewitt_dir Detect edges (amplitude and direction) using the Prewitt operator.
roberts__ Detect edges using the Roberts filter.
robinson_amp Detect edges (amplitude) using the Robinson operator.
robinson_dir Detect edges (amplitude and direction) using the Robinson operator.
sobel_amp Detect edges (amplitude) using the Sobel operator.
sobel_dir Detect edges (amplitude and direction) using the Sobel operator.


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