Projection Class Reference

Projection that the Edge analysis of Common Vision Blox is using. More...

Inherits INativeHandle.

Public Member Functions
	Projection (ImagePlane plane, Area2D aoi)
	Create an ProjectionMode.Sum projection object. More...
	Projection (ImagePlane plane, Area2D aoi, ProjectionMode mode)
	Create a projection object. More...
	Projection (ImagePlane plane, Area2D aoi, ProjectionMode mode, double density)
	Create a projection object. More...
EdgeResult[]	CalculateZeroCrossings ()
	Get all the zero crossings, that are in the projection. More...
Projection	Derive ()
	Create derivative of this projection. More...
unsafe Projection	Filter (int[] kernel)
	Filter this projection using a 1D filter kernel. More...
Projection	ToAverageProjection ()
	Create a new averaged projection from this one. More...
void	Dispose ()
	Dispose method that releases the classifier

Protected Member Functions
virtual void	Dispose (bool disposing)
	IDispose helper function. More...

Properties
ProjectionMode	Mode [get]
	Defines the result of the projection.
unsafe ProjectionValue[]	Values [get]
	Retrieve the values of the projection. More...
IntPtr	Handle [get]
	Native non projection handle. More...
bool	IsDisposed [get]
	Tests if the native handle has already been disposed.
Properties inherited from INativeHandle
IntPtr	Handle [get]
	The native handle of the object.
bool	IsDisposed [get]
	Possibility to check whether the object has already been disposed of.

Events
NativeHandleEventDelegate	ObjectDisposing
	Raised when this object is about to be disposed via the IDisposable.Dispose method. More...
Events inherited from INativeHandle
NativeHandleEventDelegate	ObjectDisposing
	Raised when this object is about to be disposed via the IDisposable.Dispose method. More...

Detailed Description

Projection that the Edge analysis of Common Vision Blox is using.

The projections are what is being used internally inside the Edge finding algorithms and the Projection object may in fact be used to build a customized edge detection.

Constructor & Destructor Documentation

Projection() [1/3]

Projection	(	ImagePlane	plane,
		Area2D	aoi
	)

Create an ProjectionMode.Sum projection object.

Parameters

plane	Image plane to create the projection from.
aoi	Area of interest to scan.

Projection() [2/3]

Projection	(	ImagePlane	plane,
		Area2D	aoi,
		ProjectionMode	mode
	)

Create a projection object.

Parameters

plane	Image plane to create the projection from.
aoi	Area of interest to scan.
mode	Mode to use.

Projection() [3/3]

Projection	(	ImagePlane	plane,
		Area2D	aoi,
		ProjectionMode	mode,
		double	density
	)

Create a projection object.

Parameters

plane	Image plane to create the projection from.
aoi	Area of interest to scan.
mode	Mode to use.
density	Density at which to scan. This is a percentage value how many pixels to process: 0.0 means 0% and 1.0 means 100%.

Member Function Documentation

CalculateZeroCrossings()

EdgeResult[] CalculateZeroCrossings

(

)

Get all the zero crossings, that are in the projection.

Returns

Array containing the zero crossings as EdgeResults.

Derive()

Projection Derive

(

)

Create derivative of this projection.

Returns

New projection containing the derivative of this projection.

Dispose()

virtual void Dispose ( bool  disposing )

protectedvirtual

IDispose helper function.

Parameters

disposing

true when called via IDisposable.Dispose, false when called by the finalizer.

Filter()

unsafe Projection Filter

(

int[]

kernel

)

Filter this projection using a 1D filter kernel.

Parameters

kernel

Filter kernel to use

Returns

New projection containing the filtered projection.

ToAverageProjection()

Projection ToAverageProjection

(

)

Create a new averaged projection from this one.

Returns

The averaged projection object.

Property Documentation

Handle

IntPtr Handle

get

Native non projection handle.

It is normally not necessary to work with this handle in CVB.Net. Note that using this handle in connection with the legacy CVB managed wrappers may actually be disruptive to your application.

Implements INativeHandle.

Values

unsafe ProjectionValue [] Values

get

Retrieve the values of the projection.

Double array with the projection values.

Exceptions

ObjectDisposedException

if the Projection object has already been disposed

Event Documentation

ObjectDisposing

NativeHandleEventDelegate ObjectDisposing

Raised when this object is about to be disposed via the IDisposable.Dispose method.

This event is raised right before this object is disposed. The dispose itself cannot be canceled.