ProcessForm(RasterImage,PageRequestCallback,Object,AutoFormsRecognizeFormResult) Method

C#
Visual Basic
Objective-C
Java
C++

public FormPages ProcessForm( 
   RasterImage form,
   PageRequestCallback pageRequestCallback,
   object userData,
   AutoFormsRecognizeFormResult formResult
)

'Declaration
 
Public Overloads Function ProcessForm( _
   ByVal form As RasterImage, _
   ByVal pageRequestCallback As PageRequestCallback, _
   ByVal userData As Object, _
   ByVal formResult As AutoFormsRecognizeFormResult _
) As FormPages

'Usage
 
Dim instance As AutoFormsEngine
Dim form As RasterImage
Dim pageRequestCallback As PageRequestCallback
Dim userData As Object
Dim formResult As AutoFormsRecognizeFormResult
Dim value As FormPages
 
value = instance.ProcessForm(form, pageRequestCallback, userData, formResult)

public:
FormPages^ ProcessForm( 
   RasterImage^ form,
   PageRequestCallback^ pageRequestCallback,
   Object^ userData,
   AutoFormsRecognizeFormResult^ formResult
)

Parameters

form: The recognized Form image.
pageRequestCallback: Page request callback if more form images are needed.
userData: The user defined data that is associated with PageRequestCallback.
formResult: The form recognition result that has been returned by RecognizeForm(RasterImage,List<IMasterFormsCategory>).

Return Value

The processed fields if the Master Form has fields, otherwise it returns null.

This method processes the recognized form fields. The Master Form fields are obtained by calling IMasterForm.ReadFields of the AutoFormsRecognizeFormResult.MasterForm.

If form does not have all form page images, during the processing if more pages are required for processing this method will ask for the required pages one page at a time using the pageRequestCallback. The PageRequestCallbackData.FormPageNumber will have the number of the required page, and the user returns the requested page image through PageRequestCallbackData.Page.

If form has all form pages you can set pageRequestCallback to null.

The form alignment is calculated from the recognition results.

C#
Visual Basic
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.Forms
Imports Leadtools.Forms.Auto
Imports Leadtools.Forms.Ocr
Imports Leadtools.Forms.Recognition
Imports Leadtools.Forms.Processing
Imports Leadtools.Barcode

Public Sub AutoFormRecognitionAndProcessing2()
   Dim root As String = Path.Combine(LEAD_VARS.ImagesDir, "Forms\FormsDemo\OCR_Test")

   Dim codecs_Renamed As RasterCodecs = New RasterCodecs()

   Dim repository As DiskMasterFormsRepository = New DiskMasterFormsRepository(codecs_Renamed, root)

   Using ocrEngine As IOcrEngine = OcrEngineManager.CreateEngine(OcrEngineType.Advantage, False)
      ocrEngine.Startup(Nothing, Nothing, Nothing, LEAD_VARS.OcrAdvantageRuntimeDir)

      Dim engineBarcode As BarcodeEngine = New BarcodeEngine()

      Dim autoEngine As AutoFormsEngine = New AutoFormsEngine(repository, ocrEngine, engineBarcode)
      autoEngine.MinimumConfidenceRecognized = 80

      'load all form pages
      Dim form As RasterImage = codecs_Renamed.Load(Path.Combine(LEAD_VARS.ImagesDir, "Forms\Images\FCC-107_OCR_Filled.tif"), 1, CodecsLoadByteOrder.Bgr, 1, -1)

      Dim result As AutoFormsRecognizeFormResult = autoEngine.RecognizeForm(form, Nothing)
      If result Is Nothing Then
         Return
      End If
      Dim formFields As FormPages = autoEngine.ProcessForm(form, Nothing, Nothing, result)
   End Using
End Sub

Public NotInheritable Class LEAD_VARS
Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
Public Const OcrAdvantageRuntimeDir As String = "C:\LEADTOOLS 18\Bin\Common\OcrAdvantageRuntime"
End Class

using Leadtools;
using Leadtools.Codecs;
using Leadtools.Forms;
using Leadtools.Forms.Auto;
using Leadtools.Forms.Ocr;
using Leadtools.Forms.Recognition;
using Leadtools.Forms.Processing;
using Leadtools.Barcode;

public void AutoFormRecognitionAndProcessing2()
{
   string root = Path.Combine(LEAD_VARS.ImagesDir, @"Forms\FormsDemo\OCR_Test");
   RasterCodecs codecs = new RasterCodecs();

   DiskMasterFormsRepository repository = new DiskMasterFormsRepository(codecs, root);

   using (IOcrEngine ocrEngine = OcrEngineManager.CreateEngine(OcrEngineType.Advantage, false))
   {
      ocrEngine.Startup(null, null, null, LEAD_VARS.OcrAdvantageRuntimeDir);

      BarcodeEngine barcodeEngine = new BarcodeEngine();

      AutoFormsEngine autoEngine = new AutoFormsEngine(repository, ocrEngine, barcodeEngine);
      autoEngine.MinimumConfidenceRecognized = 80;

      //load all form pages
      RasterImage form = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, @"Forms\Images\FCC-107_OCR_Filled.tif"), 1, CodecsLoadByteOrder.Bgr, 1, -1);

      AutoFormsRecognizeFormResult result = autoEngine.RecognizeForm(form, null);
      if (result == null)
         return;
      FormPages formFields = autoEngine.ProcessForm(form, null, null, result);
   }
}

static class LEAD_VARS
{
public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
public const string OcrAdvantageRuntimeDir = @"C:\LEADTOOLS 18\Bin\Common\OcrAdvantageRuntime";
}

Target Platforms

Reference

AutoFormsEngine Class
AutoFormsEngine Members
Overload List