QuadrilateralWarpCommand Class

Similar to the PolygonTransform, this transform additionally lets you specify a source polygon to allow further control over the warping of the image.

Inheritance Hierarchy

SystemObject
Atalasoft.Imaging.ImageProcessingImageCommand
Atalasoft.Imaging.ImageProcessing.TransformsQuadrilateralWarpCommand

Namespace: Atalasoft.Imaging.ImageProcessing.Transforms
Assembly: Atalasoft.dotImage (in Atalasoft.dotImage.dll) Version: 11.4.0.9.0.377 (.NET 4.5.2, x86)

Syntax

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[SerializableAttribute]
public class QuadrilateralWarpCommand : ImageCommand, 
	ISerializable

<SerializableAttribute>
Public Class QuadrilateralWarpCommand
	Inherits ImageCommand
	Implements ISerializable

The QuadrilateralWarpCommand type exposes the following members.

Constructors

	Name	Description
	QuadrilateralWarpCommand	Creates a new instance of QuadrilateralWarpCommand.
	QuadrilateralWarpCommand(SerializationInfo, StreamingContext)	Creates a new instance of QuadrilateralWarpCommand from serialization information
	QuadrilateralWarpCommand(Point, Point, Point, Point, InterpolationMode, Color)	Creates a new instance of QuadrilateralWarpCommand specifying destination points that will yield a perspective transform.
	QuadrilateralWarpCommand(Point, Point, Point, Point, Point, Point, Point, Point, InterpolationMode, Color)	Creates a new instance of QuadrilateralWarpCommand specifying sourceBottomLeft, sourceTopLeft, sourceTopRight, sourceBottomRight, destBottomLeft, destTopLeft, destTopRight, destBottomRight, and interpolation.

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Properties

	Name	Description
	ApplyToAnyPixelFormat	Reports whether or not this command will be applied to any supplied PixelFormat image (Inherited from ImageCommand.)
	BackgroundColor	Gets or sets the value of backgroundColor
	CanApplyToAnyPixelFormat	Returns true if the command can be applied to any PixelFormat. (Inherited from ImageCommand.)
	DestBottomLeft	Gets or sets the bottom left point of the destination image in pixels.
	DestBottomRight	Gets or sets the bottom right point of the destination image in pixels.
	DestTopLeft	Gets or sets the top left point of the destination image in pixels.
	DestTopRight	Gets or sets the top right point of the destination image in pixels.
	InPlaceProcessing	Gets a value indicating if the source image data is processed in-place as opposed to returning a new image. (Inherited from ImageCommand.)
	Interpolation	Gets or sets the InterpolationMode of this transform.
	Progress	Gets or sets the ProgressEventHandler delegate which can be used to view or cancel the progress of the current process. (Inherited from ImageCommand.)
	SourceBottomLeft	Gets or sets the bottom left point of the source image in pixels.
	SourceBottomRight	Gets or sets the bottom right point of the source image in pixels.
	SourceTopLeft	Gets or sets the top left point of the source image in pixels.
	SourceTopRight	Gets or sets the top right point of the source image in pixels.
	SupportedPixelFormats	Returns an array of PixelFormats supported by this command. (Overrides ImageCommandSupportedPixelFormats.)

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Methods

	Name	Description
	Apply	Apply the command to the given image. (Inherited from ImageCommand.)
	ApplyToImage	Obsolete. Applies the command to the source AtalaImage. (Inherited from ImageCommand.)
	ConstructChangedSourceImage	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.)
	ConstructFinalImage	Called by the default implementation of Apply, ConstructFinalImage constructs the image that will be used as the destination image for the command. (Overrides ImageCommandConstructFinalImage(AtalaImage).)
	ConstructImageResults	Constructs the results object for this command. (Inherited from ImageCommand.)
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetChangedPixelFormat	This method is called to change the pixel format of the source image. (Inherited from ImageCommand.)
	GetHashCode	Serves as the default hash function. (Inherited from Object.)
	GetObjectData	Fills a SerializationInfo object with information about this command.
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	ImageCommandGetObjectData	Aggregates ImageCommand data into the supplied SerializationInfo object. (Inherited from ImageCommand.)
	IsPixelFormatSupported	Returns a value indicating if the specified pixel format is supported. (Inherited from ImageCommand.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	PerformActualCommand	PerformActualCommand does the actual work of the image processing command. (Overrides ImageCommandPerformActualCommand(AtalaImage, AtalaImage, Rectangle, ImageResults).)
	SelectBestAlternatePixelFormat	Choose the best pixel format to use for this command when the supplied source image's pixel format is unacceptable. (Inherited from ImageCommand.)
	SelectPreferredPixelFormat	Chooses a pixel format that is preferred for this command. (Overrides ImageCommandSelectPreferredPixelFormat(AtalaImage, PixelFormat, PixelFormat).)
	ToString	Returns a string that represents the current object. (Inherited from Object.)
	VerifyImage	Verify the integrity of an AtalaImage. (Inherited from ImageCommand.)
	VerifyProperties	Verify the integrity of properties in the command before processing an image. (Overrides ImageCommandVerifyProperties(AtalaImage).)

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Remarks

This method requires a continuous tone image. If the source image is not continuous, it will raise the ChangePixelFormat event and convert the image to a continuous tone format, which can be 8-bit grayscale, RGB, or RGBA.

Examples

QuadExample (C#)

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// Load a 24-bit image.
AtalaImage image = new AtalaImage(@"D:\Test Images\1.jpg");

// Prepare the warp positions.
Point bottomLeft = new Point(100, image.Height - 80);
Point topLeft = new Point(130, 45);
Point topRight = new Point(image.Width - 60, 140);
Point bottomRight = new Point(image.Width - 20, image.Height);

// Warp the image.
QuadrilateralWarpCommand cmd = new QuadrilateralWarpCommand(bottomLeft, 
    topLeft, topRight, bottomRight, InterpolationMode.BiLinear, Color.White);

AtalaImage result = cmd.Apply(image).Image;
image.Dispose();

QuadExample (Visual Basic)

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' Load a 24-bit image.
Dim image As AtalaImage =  New AtalaImage("D:\Test Images\1.jpg") 

' Prepare the warp positions.
Dim bottomLeft As Point =  New Point(100,image.Height - 80) 
Dim topLeft As Point =  New Point(130,45) 
Dim topRight As Point =  New Point(image.Width - 60,140) 
Dim bottomRight As Point =  New Point(image.Width - 20,image.Height) 

' Warp the image.
QuadrilateralWarpCommand cmd = New QuadrilateralWarpCommand(bottomLeft, 
    topLeft, topRight, bottomRight, InterpolationMode.BiLinear, Color.White)

Dim result As AtalaImage =  cmd.Apply(image).Image 
image.Dispose()

Reference

Atalasoft.Imaging.ImageProcessing.Transforms Namespace