Run(RasterImage,PageRequestCallback,object,List<IMasterFormsCategory>) Method
Summary
Automatically recognizes the unknown form then it processes its fields.
Syntax
Parameters
categories
List of Master Forms categories to use in comparison, pass null or empty to use all Master Forms in the repository.
Return Value
Returns the results of the recognition and processing if the form is recognized, otherwise it returns null. If the Master Form has no processing field, AutoFormsRunResult.FormFields will be null.
Example
using Leadtools;
using Leadtools.Codecs;
using Leadtools.Forms.Common;
using Leadtools.Forms.Auto;
using Leadtools.Ocr;
using Leadtools.Forms.Recognition;
using Leadtools.Forms.Processing;
using Leadtools.Barcode;
public RasterCodecs Codecs;
public string FormFileName;
public void MyPageRequestCallback(PageRequestCallbackData data)
{
data.Page = Codecs.Load(FormFileName, 1, CodecsLoadByteOrder.Bgr, data.FormPageNumber, data.FormPageNumber);
}
public void AutoFormRunAutomatic()
{
string root = Path.Combine(LEAD_VARS.ImagesDir, @"Forms\FormsDemo\OCR_Test");
RasterCodecs codecs = new RasterCodecs();
//create repository
DiskMasterFormsRepository repository = new DiskMasterFormsRepository(codecs, root);
using (IOcrEngine ocrEngine = OcrEngineManager.CreateEngine(OcrEngineType.LEAD))
{
ocrEngine.Startup(null, null, null, LEAD_VARS.OcrLEADRuntimeDir);
BarcodeEngine barcodeEngine = new BarcodeEngine();
//create AutoForm Engine
AutoFormsEngine autoEngine = new AutoFormsEngine(repository, ocrEngine, barcodeEngine);
//set the flag to process the first page only
autoEngine.RecognizeFirstPageOnly = true;
autoEngine.MinimumConfidenceKnownForm = 40;
//calculate the minimum confidence recognized form according to the correlation between the master forms in the repository
autoEngine.MinimumConfidenceRecognized = autoEngine.GetMinimumRecognizedConfidenceForm();
Codecs = codecs;
FormFileName = Path.Combine(LEAD_VARS.ImagesDir, @"Forms\Forms to be Recognized\OCR\FCC-107_OCR_Filled.tif");
//load the first page of the image
RasterImage form = codecs.Load(FormFileName, 1, CodecsLoadByteOrder.Bgr, 1, 1);
//recognize and process the form
AutoFormsRunResult result = autoEngine.Run(form, MyPageRequestCallback, null, null);
if (result == null)
return;
}
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\LEADTOOLS21\Resources\Images";
public const string OcrLEADRuntimeDir = @"C:\LEADTOOLS21\Bin\Common\OcrLEADRuntime";
}
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.Forms.Common
Imports Leadtools.Forms.Auto
Imports Leadtools.Ocr
Imports Leadtools.Forms.Recognition
Imports Leadtools.Forms.Processing
Imports Leadtools.Barcode
Public Codecs As RasterCodecs
Public FormFileName As String
Public Sub MyPageRequestCallback(ByVal data As PageRequestCallbackData)
data.Page = Codecs.Load(FormFileName, 1, CodecsLoadByteOrder.Bgr, data.FormPageNumber, data.FormPageNumber)
End Sub
Public Sub AutoFormRunAutomatic()
Dim root As String = Path.Combine(LEAD_VARS.ImagesDir, "Forms\FormsDemo\OCR_Test")
Dim codecs_Renamed As RasterCodecs = New RasterCodecs()
'create repository
Dim repository As DiskMasterFormsRepository = New DiskMasterFormsRepository(codecs_Renamed, root)
Using ocrEngine As IOcrEngine = OcrEngineManager.CreateEngine(OcrEngineType.LEAD)
ocrEngine.Startup(Nothing, Nothing, Nothing, LEAD_VARS.OcrLEADRuntimeDir)
Dim engineBarcode As BarcodeEngine = New BarcodeEngine()
'create AutoForm Engine
Dim autoEngine As AutoFormsEngine = New AutoFormsEngine(repository, ocrEngine, engineBarcode)
'set the flag to process the first page only
autoEngine.RecognizeFirstPageOnly = True
autoEngine.MinimumConfidenceKnownForm = 40
'calculate the minimum confidence recognized form according to the correlation between the master forms in the repository
autoEngine.MinimumConfidenceRecognized = autoEngine.GetMinimumRecognizedConfidenceForm()
Codecs = codecs_Renamed
FormFileName = Path.Combine(LEAD_VARS.ImagesDir, "Forms\Images\FCC-107_OCR_Filled.tif")
'load the first page of the image
Dim form As RasterImage = codecs_Renamed.Load(FormFileName, 1, CodecsLoadByteOrder.Bgr, 1, 1)
'recognize and process the form
Dim result As AutoFormsRunResult = autoEngine.Run(form, AddressOf MyPageRequestCallback, Nothing, Nothing)
If result Is Nothing Then
Return
End If
End Using
End Sub
Public NotInheritable Class LEAD_VARS
Public Const ImagesDir As String = "C:\LEADTOOLS21\Resources\Images"
Public Const OcrLEADRuntimeDir As String = "C:\LEADTOOLS21\Bin\Common\OcrLEADRuntime"
End Class