DocumentPerspectiveCorrectionCommand Class

In This Topic

Corrects the perspective distortion in document image, removes border in document image and deskews the document image.

Object Model

Syntax

'Declaration

Public Class DocumentPerspectiveCorrectionCommand
   Inherits Vintasoft.Imaging.ImageProcessing.ProcessingCommandBase

public class DocumentPerspectiveCorrectionCommand : Vintasoft.Imaging.ImageProcessing.ProcessingCommandBase

public __gc class DocumentPerspectiveCorrectionCommand : public Vintasoft.Imaging.ImageProcessing.ProcessingCommandBase*

public ref class DocumentPerspectiveCorrectionCommand : public Vintasoft.Imaging.ImageProcessing.ProcessingCommandBase^

Remarks

This image processing command should be used to process image that contains document with visible borders.
If document image is captured using a camera, command can correct the perspective distortion in document image, remove border in document image and deskew the document image.
If document image is acquired from image scanner, command can remove border in document image and deskew the document image.

Example

This C#/VB.NET code shows how to load an image from disk, correct the perspective distortion in document image and save the result to a new image file.

VB.NET


''' <summary>
''' Corrects perspective distortion of document image.
''' </summary>
''' <param name="sourceFile">Source image file.</param>
''' <param name="resultFile">Result image file.</param>
Public Sub ApplyPerspectiveCorrection(sourceFile As String, resultFile As String)
    Using image As New Vintasoft.Imaging.VintasoftImage(sourceFile)
        ' create the perspective correction command
        Dim command As New Vintasoft.Imaging.ImageProcessing.Document.DocumentPerspectiveCorrectionCommand()

        ' apply the perspective correction to a document image
        command.ExecuteInPlace(image)

        ' save the result image to a file
        image.Save(resultFile)
    End Using
End Sub


/// <summary>
/// Corrects perspective distortion of document image.
/// </summary>
/// <param name="sourceFile">Source image file.</param>
/// <param name="resultFile">Result image file.</param>
public void ApplyPerspectiveCorrection(string sourceFile, string resultFile)
{
    using (Vintasoft.Imaging.VintasoftImage image =
        new Vintasoft.Imaging.VintasoftImage(sourceFile))
    {
        // create the perspective correction command
        Vintasoft.Imaging.ImageProcessing.Document.DocumentPerspectiveCorrectionCommand command =
            new Vintasoft.Imaging.ImageProcessing.Document.DocumentPerspectiveCorrectionCommand();

        // apply the perspective correction to a document image
        command.ExecuteInPlace(image);

        // save the result image to a file
        image.Save(resultFile);
    }
}

Inheritance Hierarchy

System.Object
Vintasoft.Imaging.ImageProcessing.ProcessingCommandBase
Vintasoft.Imaging.ImageProcessing.Document.DocumentPerspectiveCorrectionCommand

Requirements

Target Platforms: .NET 10; .NET 9; .NET 8; .NET 7; .NET 6; .NET Framework 4.8, 4.7, 4.6, 4.5, 4.0, 3.5

Reference

DocumentPerspectiveCorrectionCommand Members
Vintasoft.Imaging.ImageProcessing.Document Namespace

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