ProcessForm(RasterImage,PageRequestCallback,object,FormRecognitionAttributes,FormPages) Method

Summary

Performs field processing on the recognized form image.

Syntax

C++/CLI

Java

Python

public void ProcessForm( 
   RasterImage form, 
   PageRequestCallback pageRequestCallback, 
   object userData, 
   FormRecognitionAttributes masterAttributes, 
   FormPages formFields 
)

public void processForm( 
   RasterImage,  
   PageRequestCallback,  
   java.lang.Object,  
   FormRecognitionAttributes,  
   FormPages 
);

public: 
void ProcessForm(  
   RasterImage^ form, 
   PageRequestCallback^ pageRequestCallback, 
   Object^ userData, 
   FormRecognitionAttributes^ masterAttributes, 
   FormPages^ formFields 
)

def ProcessForm(self,form,pageRequestCallback,userData,masterAttributes,formFields):

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.

masterAttributes
The Master Form attributes of the form type.

formFields
The fields to be processed for the Master Form of the form type.

Remarks

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 needed page, and the user returns the requested page image through PageRequestCallbackData.Page.

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

This method is useful because it allows you to do the form processing later on or on another machine without the need to recreate the recognition result object

The form alignment is calculated from the recognition results.

Example

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Forms.Common; 
using Leadtools.Forms.Auto; 
using Leadtools.Document; 
using Leadtools.Ocr; 
using Leadtools.Forms.Recognition; 
using Leadtools.Forms.Processing; 
using Leadtools.Barcode; 
 
 
public void MyProgressEvent(object sender, AutoFormsProgressEventArgs e) 
{ 
   Console.WriteLine("Operation: {0}  {1}%", e.Operation, e.Percentage); 
} 
public void AutoFormRecognitionAndProcessing1() 
{ 
   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(); 
 
      AutoFormsEngine autoEngine = new AutoFormsEngine(repository, ocrEngine, barcodeEngine, 30, 80, true); 
      autoEngine.Progress += MyProgressEvent; 
 
      //Load the first page of the for, 
      RasterImage form = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, @"Forms\Forms to be Recognized\OCR\FCC-107_OCR_Filled.tif"), 
                                     1, CodecsLoadByteOrder.Bgr, 1, 1); 
      //recognize the form 
      AutoFormsRecognizeFormResult result = autoEngine.RecognizeForm(form, null); 
      if (result == null) 
         return; 
      //check if we have all pages 
      if (form.PageCount != result.Properties.Pages) 
      {//load the remaining pages of the form 
         form.AddPages(codecs.Load(FormFileName, 1, CodecsLoadByteOrder.Bgr, 2, -1), 1, -1); 
      } 
      //get form fields 
      FormPages formFields = result.MasterForm.ReadFields(); 
      FormRecognitionAttributes attributes = result.MasterForm.ReadAttributes(); 
      //process form 
      autoEngine.ProcessForm(form, null, null, attributes, formFields); 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
   public const string OcrLEADRuntimeDir = @"C:\LEADTOOLS22\Bin\Common\OcrLEADRuntime"; 
}

Requirements

Target Platforms

Reference

AutoFormsEngine Class

AutoFormsEngine Members

Overload List

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Help Version 22.0.2023.3.31

Leadtools.Forms.Auto Assembly

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