Collection of functions for Edge detection. More...

Static Public Member Functions
static EdgeResult	FindFirst (ImagePlane plane, EdgeSearchMode mode, EdgeType type, double threshold)
	Find the first edge (as specified) in the whole plane . More...

static EdgeResult	FindFirst (ImagePlane plane, EdgeSearchMode mode, EdgeType type, double threshold, double density)
	Find the first edge (as specified) in the whole plane . More...

static EdgeResult	FindFirst (ImagePlane plane, Area2D aoi, EdgeSearchMode mode, EdgeType type, double threshold)
	Find the first edge (as specified) in the aoi . More...

static EdgeResult	FindFirst (ImagePlane plane, Area2D aoi, EdgeSearchMode mode, EdgeType type, double threshold, double density)
	Find the first edge (as specified) in the aoi . More...

static EdgeResultPair	FindPair (ImagePlane plane, EdgeSearchMode mode, EdgeType type1, EdgeType type2, double threshold)
	Find an edge pair (as specified) in the image plane . More...

static EdgeResultPair	FindPair (ImagePlane plane, EdgeSearchMode mode, EdgeType type1, EdgeType type2, double threshold, double density)
	Find an edge pair (as specified) in the image plane . More...

static EdgeResultPair	FindPair (ImagePlane plane, Area2D aoi, EdgeSearchMode mode, EdgeType type1, EdgeType type2, double threshold)
	Find an edge pair (as specified) in the image plane . More...

static EdgeResultPair	FindPair (ImagePlane plane, Area2D aoi, EdgeSearchMode mode, EdgeType type1, EdgeType type2, double threshold, double density)
	Find an edge pair (as specified) in the image plane . More...

static EdgeResultPair	FindPair (ImagePlane plane, EdgeSearchMode mode, EdgeType type1, double threshold1, EdgeType type2, double threshold2)
	Find an edge pair (as specified) in the image plane . More...

static EdgeResultPair	FindPair (ImagePlane plane, EdgeSearchMode mode, EdgeType type1, double threshold1, EdgeType type2, double threshold2, double density)
	Find an edge pair (as specified) in the image plane . More...

static EdgeResultPair	FindPair (ImagePlane plane, Area2D aoi, EdgeSearchMode mode, EdgeType type1, double threshold1, EdgeType type2, double threshold2)
	Find an edge pair (as specified) in the aoi . More...

static EdgeResultPair	FindPair (ImagePlane plane, Area2D aoi, EdgeSearchMode mode, EdgeType type1, double threshold1, EdgeType type2, double threshold2, double density)
	Find an edge pair (as specified) in the aoi . More...

static EdgeResult[]	FindAll (ImagePlane plane, EdgeSearchMode mode, EdgeType type, double threshold)
	Find all edges inside an plane . More...

static EdgeResult[]	FindAll (ImagePlane plane, EdgeSearchMode mode, EdgeType type, double threshold, double density)
	Find all edges inside an plane . More...

static EdgeResult[]	FindAll (ImagePlane plane, Area2D aoi, EdgeSearchMode mode, EdgeType type, double threshold)
	Find all edges inside an aoi . More...

static EdgeResult[]	FindAll (ImagePlane plane, Area2D aoi, EdgeSearchMode mode, EdgeType type, double threshold, double density)
	Find all edges inside an aoi . More...

static EdgeResult	FindBest (ImagePlane plane, EdgeType type)
	Use the 2nd derivative method to find the edge with the highest intensity in the plane . More...

static EdgeResult	FindBest (ImagePlane plane, EdgeType type, double density)
	Use the 2nd derivative method to find the edge with the highest intensity in the plane . More...

static EdgeResult	FindBest (ImagePlane plane, Area2D aoi, EdgeType type)
	Use the 2nd derivative method to find the edge with the highest intensity in the area of interest. More...

static EdgeResult	FindBest (ImagePlane plane, Area2D aoi, EdgeType type, double density)
	Use the 2nd derivative method to find the edge with the highest intensity in the area of interest. More...

static void	WriteProjection (ImagePlane plane, Area2D aoi)
	Write the projection that Edge is using internally as the basis for its calculations into an image plane (might be useful for debugging purposes). More...

static void	WriteProjection (ImagePlane plane, Area2D aoi, double density)
	Write the projection that Edge is using internally as the basis for its calculations into an image plane (might be useful for debugging purposes). More...

Package Functions
delegate void	OutAction< TOut > (out TOut x)
	Standard look of the processing functions in the edge tool More...

Static Package Functions
static EdgeResult[]	EdgeResultsToArray (IntPtr p, EdgeType type)
	Convert an edge results collection to an edge list. More...

static TOut	EdgeProcessing< TOut > (ImagePlane plane, OutAction< TOut > fn)
	Edge processing cannot use Stemmer.Cvb.Processing (see the description of EdgeProcessingFunction1 for details). More...

Detailed Description

Collection of functions for Edge detection.

Member Function Documentation

◆ EdgeProcessing< TOut >()

static TOut EdgeProcessing< TOut >	(	ImagePlane	plane,
		OutAction< TOut >	fn
	)

staticpackage

Edge processing cannot use Stemmer.Cvb.Processing (see the description of EdgeProcessingFunction1 for details).

Parameters

plane	image plane to work on
fn	function to invoke

Returns: edge result (EdgeResult.Empty if nothing was found)

Exceptions

ObjectDisposedException If the plane to work on has already been disposed.

◆ EdgeResultsToArray()

static EdgeResult[] EdgeResultsToArray	(	IntPtr	p,
		EdgeType	type
	)

staticpackage

Convert an edge results collection to an edge list.

Parameters

p	unmanaged list to convert
type	edge type contained in that list

Returns: Results array.

◆ FindAll() [1/4]

static EdgeResult[] FindAll	(	ImagePlane	plane,
		Area2D	aoi,
		EdgeSearchMode	mode,
		EdgeType	type,
		double	threshold
	)

static

Find all edges inside an aoi .

Parameters

plane	Plane in which to search.
aoi	Area to search.
mode	Search mode to use.
type	Type of edge to be searched for.
threshold	Threshold to apply.

Returns: Found edges.

Exceptions

ObjectDisposedException If the plane to work on has already been disposed.

◆ FindAll() [2/4]

static EdgeResult[] FindAll	(	ImagePlane	plane,
		Area2D	aoi,
		EdgeSearchMode	mode,
		EdgeType	type,
		double	threshold,
		double	density
	)

static

Find all edges inside an aoi .

Parameters

plane	Plane in which to search.
aoi	Area to search.
mode	Search mode to use.
type	Type of edge to be searched for.
threshold	Threshold to apply.
density	Search density to use.

Returns: Found edges.

Exceptions

ObjectDisposedException If the plane to work on has already been disposed.

◆ FindAll() [3/4]

static EdgeResult[] FindAll	(	ImagePlane	plane,
		EdgeSearchMode	mode,
		EdgeType	type,
		double	threshold
	)

static

Find all edges inside an plane .

Parameters

plane	Plane in which to search.
mode	Search mode to use.
type	Type of edge to be searched for.
threshold	Threshold to apply.

Returns: Found edges.

Exceptions

ObjectDisposedException If the plane to work on has already been disposed.

◆ FindAll() [4/4]

static EdgeResult[] FindAll	(	ImagePlane	plane,
		EdgeSearchMode	mode,
		EdgeType	type,
		double	threshold,
		double	density
	)

static

Find all edges inside an plane .

Parameters

plane	Plane in which to search.
mode	Search mode to use.
type	Type of edge to be searched for.
threshold	Threshold to apply.
density	Search density to use.

Returns: Found edges.

Exceptions

ObjectDisposedException If the plane to work on has already been disposed.

◆ FindBest() [1/4]

static EdgeResult FindBest	(	ImagePlane	plane,
		Area2D	aoi,
		EdgeType	type
	)

static

Use the 2nd derivative method to find the edge with the highest intensity in the area of interest.

Parameters

plane	Plane to scan
aoi	Area to scan
type	Type of edge to be searched for.

Returns: The best result (or EdgeResult.Nothing if nothing was found e.g. because the area is outside the image)

Exceptions

ObjectDisposedException If the plane to work on has already been disposed.

◆ FindBest() [2/4]

static EdgeResult FindBest	(	ImagePlane	plane,
		Area2D	aoi,
		EdgeType	type,
		double	density
	)

static

Use the 2nd derivative method to find the edge with the highest intensity in the area of interest.

Parameters

plane	Plane to scan
aoi	Area to scan
type	Type of edge to be searched for.
density	Density at which to scan

Returns: The best result (or EdgeResult.Nothing if nothing was found e.g. because the area is outside the image)

Exceptions

ObjectDisposedException If the plane to work on has already been disposed.

◆ FindBest() [3/4]

static EdgeResult FindBest	(	ImagePlane	plane,
		EdgeType	type
	)

static

Use the 2nd derivative method to find the edge with the highest intensity in the plane .

Parameters

plane	Plane to scan
type	Type of edge to be searched for.

Returns: The best result (or EdgeResult.Nothing if nothing was found e.g. because the area is outside the image)

Exceptions

ObjectDisposedException If the plane to work on has already been disposed.

◆ FindBest() [4/4]

static EdgeResult FindBest	(	ImagePlane	plane,
		EdgeType	type,
		double	density
	)

static

Use the 2nd derivative method to find the edge with the highest intensity in the plane .

Parameters

plane	Plane to scan
type	Type of edge to be searched for.
density	Density at which to scan

Returns: The best result (or EdgeResult.Nothing if nothing was found e.g. because the area is outside the image)

Exceptions

ObjectDisposedException If the plane to work on has already been disposed.

◆ FindFirst() [1/4]

static EdgeResult FindFirst	(	ImagePlane	plane,
		Area2D	aoi,
		EdgeSearchMode	mode,
		EdgeType	type,
		double	threshold
	)

static

Find the first edge (as specified) in the aoi .

Parameters

plane	Plane to search in.
aoi	Area to scan.
mode	Search mode.
type	Type of edge to be searched for.
threshold	Edge threshold to apply.

Returns: Found edge (or EdgeResult.Empty if no edge was found).

Exceptions

ObjectDisposedException If the plane to work on has already been disposed.

◆ FindFirst() [2/4]

static EdgeResult FindFirst	(	ImagePlane	plane,
		Area2D	aoi,
		EdgeSearchMode	mode,
		EdgeType	type,
		double	threshold,
		double	density
	)

static

Find the first edge (as specified) in the aoi .

Parameters

plane	Plane to search in.
aoi	Area to scan.
mode	Search mode.
type	Type of edge to be searched for.
threshold	Edge threshold to apply.
density	Density at which to scan the aoi where 1.0 means scanning all pixels.

Returns: Found edge (or EdgeResult.Empty if no edge was found).

Exceptions

ObjectDisposedException If the plane to work on has already been disposed.

◆ FindFirst() [3/4]

static EdgeResult FindFirst	(	ImagePlane	plane,
		EdgeSearchMode	mode,
		EdgeType	type,
		double	threshold
	)

static

Find the first edge (as specified) in the whole plane .

Parameters

plane	Plane to search in.
mode	Search mode.
type	Type of edge to be searched for.
threshold	Edge threshold to apply.

Returns: Found edge (or EdgeResult.Empty if no edge was found).

Exceptions

ObjectDisposedException If the plane to work on has already been disposed.

◆ FindFirst() [4/4]

static EdgeResult FindFirst	(	ImagePlane	plane,
		EdgeSearchMode	mode,
		EdgeType	type,
		double	threshold,
		double	density
	)

static

Find the first edge (as specified) in the whole plane .

Parameters

plane	Plane to search in.
mode	Search mode.
type	Type of edge to be searched for.
threshold	Edge threshold to apply.
density	Density at which to scan the

Returns: Found edge (or EdgeResult.Empty if no edge was found).

Exceptions

ObjectDisposedException If the plane to work on has already been disposed.

◆ FindPair() [1/8]

static EdgeResultPair FindPair	(	ImagePlane	plane,
		Area2D	aoi,
		EdgeSearchMode	mode,
		EdgeType	type1,
		double	threshold1,
		EdgeType	type2,
		double	threshold2
	)

static

Find an edge pair (as specified) in the aoi .

Parameters

plane	plane to search in
aoi	area to scan
mode	search mode
type1	Type of edge to be searched for.
threshold1	threshold to apply when looking for the first edge (left to right in the aoi )
type2	Type of edge to be searched for.
threshold2	threshold to apply when looking for the second edge (right to left in the aoi )

Returns: Search results (containing EdgeResult.Empty if not found).

Exceptions

ObjectDisposedException If the plane to work on has already been disposed.

◆ FindPair() [2/8]

static EdgeResultPair FindPair	(	ImagePlane	plane,
		Area2D	aoi,
		EdgeSearchMode	mode,
		EdgeType	type1,
		double	threshold1,
		EdgeType	type2,
		double	threshold2,
		double	density
	)

static

Find an edge pair (as specified) in the aoi .

Parameters

plane	plane to search in
aoi	area to scan
mode	search mode
type1	Type of edge to be searched for.
threshold1	threshold to apply when looking for the first edge (left to right in the aoi )
type2	Type of edge to be searched for.
threshold2	threshold to apply when looking for the second edge (right to left in the aoi )
density	density at which to scan the aoi

Returns: Search results (containing EdgeResult.Empty if not found).

Exceptions

ObjectDisposedException If the plane to work on has already been disposed.

◆ FindPair() [3/8]

static EdgeResultPair FindPair	(	ImagePlane	plane,
		Area2D	aoi,
		EdgeSearchMode	mode,
		EdgeType	type1,
		EdgeType	type2,
		double	threshold
	)

static

Find an edge pair (as specified) in the image plane .

Parameters

plane	Plane to search in
aoi	Area to scan
mode	Search mode
type1	Type of edge to be searched for.
type2	Type of edge to be searched for.
threshold	Threshold to apply when looking for both edges

Returns: Search results (containing EdgeResult.Empty if not found).

Exceptions

ObjectDisposedException If the plane to work on has already been disposed.

◆ FindPair() [4/8]

static EdgeResultPair FindPair	(	ImagePlane	plane,
		Area2D	aoi,
		EdgeSearchMode	mode,
		EdgeType	type1,
		EdgeType	type2,
		double	threshold,
		double	density
	)

static

Find an edge pair (as specified) in the image plane .

Parameters

plane	Plane to search in
aoi	Area to scan
mode	Search mode
type1	Type of edge to be searched for.
type2	Type of edge to be searched for.
threshold	Threshold to apply when looking for both edges
density	density at which to scan the image plane .

Returns: Search results (containing EdgeResult.Empty if not found).

Exceptions

ObjectDisposedException If the plane to work on has already been disposed.

◆ FindPair() [5/8]

static EdgeResultPair FindPair	(	ImagePlane	plane,
		EdgeSearchMode	mode,
		EdgeType	type1,
		double	threshold1,
		EdgeType	type2,
		double	threshold2
	)

static

Find an edge pair (as specified) in the image plane .

Parameters

plane	Plane to search in
mode	search mode
type1	Type of edge to be searched for.
threshold1	threshold to apply when looking for the first edge (left to right in the plane )
type2	Type of edge to be searched for.
threshold2	threshold to apply when looking for the second edge (right to left in the plane )

Returns: Search results (containing EdgeResult.Empty if not found).

Exceptions

ObjectDisposedException If the plane to work on has already been disposed.

◆ FindPair() [6/8]

static EdgeResultPair FindPair	(	ImagePlane	plane,
		EdgeSearchMode	mode,
		EdgeType	type1,
		double	threshold1,
		EdgeType	type2,
		double	threshold2,
		double	density
	)

static

Find an edge pair (as specified) in the image plane .

Parameters

plane	plane to search in
mode	search mode
type1	Type of edge to be searched for.
threshold1	threshold to apply when looking for the first edge (left to right in the image plane )
type2	Type of edge to be searched for.
threshold2	threshold to apply when looking for the second edge (right to left in the plane )
density	density at which to scan the image plane .

Returns: Search results (containing EdgeResult.Empty if not found).

Exceptions

ObjectDisposedException If the plane to work on has already been disposed.

◆ FindPair() [7/8]

static EdgeResultPair FindPair	(	ImagePlane	plane,
		EdgeSearchMode	mode,
		EdgeType	type1,
		EdgeType	type2,
		double	threshold
	)

static

Find an edge pair (as specified) in the image plane .

Parameters

plane	Plane to search in
mode	Search mode
type1	Type of edge to be searched for.
type2	Type of edge to be searched for.
threshold	Threshold to apply when looking for both edges

Returns: Search results (containing EdgeResult.Empty if not found).

Exceptions

ObjectDisposedException If the plane to work on has already been disposed.

◆ FindPair() [8/8]

static EdgeResultPair FindPair	(	ImagePlane	plane,
		EdgeSearchMode	mode,
		EdgeType	type1,
		EdgeType	type2,
		double	threshold,
		double	density
	)

static

Find an edge pair (as specified) in the image plane .

Parameters

plane	Plane to search in
mode	Search mode
type1	Type of edge to be searched for.
type2	Type of edge to be searched for.
threshold	Threshold to apply when looking for both edges
density	density at which to scan the image plane .

Returns: Search results (containing EdgeResult.Empty if not found).

Exceptions

ObjectDisposedException If the plane to work on has already been disposed.

◆ OutAction< TOut >()

delegate void OutAction< TOut > ( out TOut x )

package

Standard look of the processing functions in the edge tool

Template Parameters

TOut	Type of output.

◆ WriteProjection() [1/2]

static void WriteProjection	(	ImagePlane	plane,
		Area2D	aoi
	)

static

Write the projection that Edge is using internally as the basis for its calculations into an image plane (might be useful for debugging purposes).

Parameters

plane	plane to write the projection to
aoi	area of interest to project

Exceptions

ObjectDisposedException If the plane to work on has already been disposed.

◆ WriteProjection() [2/2]

static void WriteProjection	(	ImagePlane	plane,
		Area2D	aoi,
		double	density
	)

static

Write the projection that Edge is using internally as the basis for its calculations into an image plane (might be useful for debugging purposes).

Parameters

plane	plane to write the projection to
density	density at which to scan
aoi	area of interest to project

Exceptions

ObjectDisposedException If the plane to work on has already been disposed.

Static Public Member Functions

Package Functions

Static Package Functions

Detailed Description

Member Function Documentation

◆ EdgeProcessing< TOut >()

◆ EdgeResultsToArray()

◆ FindAll() [1/4]

◆ FindAll() [2/4]

◆ FindAll() [3/4]

◆ FindAll() [4/4]

◆ FindBest() [1/4]

◆ FindBest() [2/4]

◆ FindBest() [3/4]

◆ FindBest() [4/4]

◆ FindFirst() [1/4]

◆ FindFirst() [2/4]

◆ FindFirst() [3/4]

◆ FindFirst() [4/4]

◆ FindPair() [1/8]

◆ FindPair() [2/8]

◆ FindPair() [3/8]

◆ FindPair() [4/8]

◆ FindPair() [5/8]

◆ FindPair() [6/8]

◆ FindPair() [7/8]

◆ FindPair() [8/8]

◆ OutAction< TOut >()

◆ WriteProjection() [1/2]

◆ WriteProjection() [2/2]