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CannyEdgeDetectorCommand Class

Find edges in an image using the Canny algorithm.
Inheritance Hierarchy

Namespace:  Atalasoft.Imaging.ImageProcessing.Filters
Assembly:  Atalasoft.dotImage (in Atalasoft.dotImage.dll) Version: 11.0.0.0.0.297 (.NET 4.5.2, x86)
Syntax
[SerializableAttribute]
public class CannyEdgeDetectorCommand : ImageRegionCommand, 
	ISerializable

The CannyEdgeDetectorCommand type exposes the following members.

Constructors
  NameDescription
Public methodCannyEdgeDetectorCommand
Creates a new instance of CannyEdgeDetectorCommand.
Protected methodCannyEdgeDetectorCommand(SerializationInfo, StreamingContext)
Creates a new instance of CannyEdgeDetectorCommand from serialization information.
Public methodCannyEdgeDetectorCommand(Double, Double, Double)
Creates a new instance of CannyEdgeDetectorCommand specifying the deviation and hysteresis.
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Properties
  NameDescription
Public propertyApplyToAnyPixelFormat
Reports whether or not this command will be applied to any supplied PixelFormat image
(Inherited from ImageCommand.)
Public propertyCanApplyToAnyPixelFormat
Returns true if the command can be applied to any PixelFormat.
(Inherited from ImageCommand.)
Public propertyHighHysteresis
Gets or sets a value used to specify the high hysteresis value.
Public propertyInPlaceProcessing
Gets a value indicating if the source image data is processed in-place as opposed to returning a new image.
(Inherited from ImageCommand.)
Public propertyLowHysteresis
Gets or sets a value used to specify the low hysteresis value.
Public propertyProgress
Gets or sets the ProgressEventHandler delegate which can be used to view or cancel the progress of the current process.
(Inherited from ImageCommand.)
Public propertyRegionOfInterest

Gets or sets a RegionOfInterest which will only process the indicated region of the image.

(Inherited from ImageRegionCommand.)
Public propertySigma
Gets or sets the standard deviation of the gaussian kernal.
Public propertySupportedPixelFormats
Returns an array of PixelFormats supported by this command.
(Overrides ImageCommandSupportedPixelFormats.)
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Methods
  NameDescription
Public methodApply
Applies a Canny Edge Detection filter using the current settings to the specified image.
(Overrides ImageCommandApply(AtalaImage).)
Public methodApplyToImage Obsolete.
Applies the command to the source AtalaImage.
(Inherited from ImageCommand.)
Protected methodConstructChangedSourceImage
The method is called by the default implementation of Apply. It determines if it is necessary to create a copy of the source image in a different pixel format and if so, determines the best new pixel format and allocates that image.
(Inherited from ImageCommand.)
Protected methodConstructFinalImage
Called by the default implementation of Apply, ConstructFinalImage constructs the image that will be used as the destination image for the command.
(Inherited from ImageCommand.)
Protected methodConstructImageResults
Constructs the results object for this command.
(Inherited from ImageCommand.)
Public methodEquals
Determines whether the specified object is equal to the current object.
(Inherited from Object.)
Protected methodFinalize
Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.
(Inherited from Object.)
Protected methodGetChangedPixelFormat
This method is called to change the pixel format of the source image.
(Inherited from ImageCommand.)
Public methodGetHashCode
Serves as the default hash function.
(Inherited from Object.)
Public methodGetObjectData
Fills a SerializationInfo object with information about this command.
(Overrides ImageRegionCommandGetObjectData(SerializationInfo, StreamingContext).)
Public methodGetType
Gets the Type of the current instance.
(Inherited from Object.)
Protected methodImageCommandGetObjectData
Aggregates ImageCommand data into the supplied SerializationInfo object.
(Inherited from ImageCommand.)
Public methodIsPixelFormatSupported
Returns a value indicating if the specified pixel format is supported.
(Inherited from ImageCommand.)
Protected methodMemberwiseClone
Creates a shallow copy of the current Object.
(Inherited from Object.)
Protected methodPerformActualCommand
PerformActualCommand does the actual work of the image processing command.
(Overrides ImageCommandPerformActualCommand(AtalaImage, AtalaImage, Rectangle, ImageResults).)
Protected methodSelectBestAlternatePixelFormat
Choose the best pixel format to use for this command when the supplied source image's pixel format is unacceptable.
(Inherited from ImageCommand.)
Protected methodSelectPreferredPixelFormat
Chooses a pixel format that is preferred for this command.
(Overrides ImageCommandSelectPreferredPixelFormat(AtalaImage, PixelFormat, PixelFormat).)
Public methodToString
Returns a string that represents the current object.
(Inherited from Object.)
Protected methodVerifyImage
Verify the integrity of an AtalaImage.
(Inherited from ImageCommand.)
Protected methodVerifyProperties
Verify the integrity of properties in the command before processing an image.
(Overrides ImageCommandVerifyProperties(AtalaImage).)
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Examples
CannyEdge Example (C#)
// Load a 24-bit image.
AtalaImage image = new AtalaImage(@"D:\Test Images\1.jpg");

// Apply the command.
CannyEdgeDetectorCommand cmd = new CannyEdgeDetectorCommand(1.1, 30, 20);
AtalaImage result = cmd.Apply(image).Image;

image.Dispose();
CannyEdge Example (Visual Basic)
' Load a 24-bit image.
Dim image As AtalaImage =  New AtalaImage("D:\Test Images\1.jpg") 

' Apply the command.
Dim cmd As CannyEdgeDetectorCommand =  New CannyEdgeDetectorCommand(1.1,30,20) 
Dim result As AtalaImage =  cmd.Apply(image).Image 

image.Dispose()
See Also