AutoDeskewCommand Class

The AutoDeskewCommand automatically deskews a binary image using %%company%%'s patent pending auto-deskew algorithm.

Inheritance Hierarchy

SystemObject
Atalasoft.Imaging.ImageProcessingImageCommand
Atalasoft.Imaging.ImageProcessing.DocumentAutoDeskewCommand

Namespace: Atalasoft.Imaging.ImageProcessing.Document
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 AutoDeskewCommand : ImageCommand, 
	ISerializable

<SerializableAttribute>
Public Class AutoDeskewCommand
	Inherits ImageCommand
	Implements ISerializable

The AutoDeskewCommand type exposes the following members.

Constructors

	Name	Description
	AutoDeskewCommand	Creates a new instance of AutoDeskewCommand.
	AutoDeskewCommand(Rectangle)	Initializes a new instance of the AutoDeskewCommand with default settings and a rectangular area to process.
	AutoDeskewCommand(Int32, Int32)	Initializes a new instance of the AutoDeskewCommand specifying the precision and limit angle.
	AutoDeskewCommand(SerializationInfo, StreamingContext)	Creates a new instance of AutoDeskewCommand from serialization information.
	AutoDeskewCommand(Int32, Int32, Rectangle)	Initializes a new instance of the AutoDeskewCommand specifying the precision, limit angle, and rectangular area to process.
	AutoDeskewCommand(Int32, Int32, AutoDeskewCropMode, Color, Rectangle)	Initializes a new instance of the AutoDeskewCommand specifying the precision, limit angle, crop mode, background color, and rectangular area to process.

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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.)
	Area	Gets or sets rectangular area that will be used for determining the skew angle.
	BackgroundColor	Gets or sets the background color to use when de-skewing the image.
	CanApplyToAnyPixelFormat	Returns true if the command can be applied to any PixelFormat. (Inherited from ImageCommand.)
	Coverage	Represents the percentage of the image that will be randomly sampled when determining the skew angle.
	CropMode	Gets or sets a value indicating the method of cropping the resulting de-skewed image.
	ExtractBoundary	Gets or sets a value which will pre-process the image by removing solid filled areas of the image.
	InPlaceProcessing	Gets a value indicating if the source image data is processed in-place as opposed to returning a new image. (Inherited from ImageCommand.)
	LimitAngle	Gets or sets the maximum skew angle in degrees.
	Precision	Gets or sets the precision of the de-skew angle calculation.
	Progress	Gets or sets the ProgressEventHandler delegate which can be used to view or cancel the progress of the current process. (Inherited from ImageCommand.)
	SkewAngle	Obsolete. Gets a value indicating the last detected skew angle.
	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	Represents the base class for all image processing routines that modify image data. (Overrides ImageCommandConstructFinalImage(AtalaImage).)
	ConstructImageResults	Represents the base class for all image processing routines that modify image data. (Overrides ImageCommandConstructImageResults.)
	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.)
	GetDeskewAngle	GetDeskewAngle returns the skew angle of the image without changing the image at all.
	GetHashCode	Serves as the default hash function. (Inherited from Object.)
	GetObjectData
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	ImageCommandGetObjectData	Aggregates ImageCommand data into the supplied SerializationInfo object. (Inherited from ImageCommand.)
	IsPixelFormatSupported	Represents the base class for all image processing routines that modify image data. (Overrides ImageCommandIsPixelFormatSupported(PixelFormat).)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	PerformActualCommand	Represents the base class for all image processing routines that modify image data. (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. (Inherited from ImageCommand.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)
	VerifyImage	Verify the integrity of an AtalaImage. (Inherited from ImageCommand.)
	VerifyProperties	Represents the base class for all image processing routines that modify image data. (Overrides ImageCommandVerifyProperties(AtalaImage).)

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Remarks

This command works best with images containing horizontal text.

There are a few ways to improve performance. Decrease the LimitAngle and Precision or pass in a smaller rectangular area containing the horizontally aligned text area. The Coverage property can be decreased to increase performance, however it will result in loss accuracy. For guaranteed accuracy, set the Coverage property to 100.

The SkewAngle property is set to the last detected skew angle. See GetDeskewAngle(AtalaImage) to determine the skew angle without actually rotating the image.

As of 6.0 AutoDeskewCommnd now additionally supports the following image formats: ,Pixel8bppGrayscale, Pixel24bppBgr, Pixel32bppBgr and Pixel32bppBgra.

Reference

Atalasoft.Imaging.ImageProcessing.Document Namespace