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ComparePage(FormRecognitionAttributes,int,FormRecognitionAttributes,int,PageProgressCallback) Method

Summary
Returns a PageRecognitionResult object that describes how close the specified Form page is in comparison to the specified Master Form page.
Syntax
C#
VB
C++
Java
  
Public Overloads Function ComparePage( _ 
   ByVal masterAttributes As FormRecognitionAttributes, _ 
   ByVal masterPageNumber As Integer, _ 
   ByVal formAttributes As FormRecognitionAttributes, _ 
   ByVal formPageNumber As Integer, _ 
   ByVal callback As PageProgressCallback _ 
) As PageRecognitionResult 

Parameters

masterAttributes
The attributes of the Master Form.

masterPageNumber
The reference Master Form page. The page number is a 1-based index.

formAttributes
The Form attributes object.

formPageNumber
The page of the form being aligned. The page number is a 1-based index.

callback
Optional callback to show operation progress.

Remarks

Comparisons should be made between two attribute sets that have been generated using the Default Manager Objects. For example, if the Master Form attribute object was generated using the BarcodeManager and the Form attribute object was generated using the OcrManager, then the Form will not be recognized since the Master Form attribute object does not have the text features the Form has.

Example

For a complete example of using form recognition and processing, refer to the FormRecognitionEngine example.

This example adds a page to the form

C#
VB
using Leadtools; 
using Leadtools.Barcode; 
using Leadtools.Codecs; 
using Leadtools.Forms.Common; 
using Leadtools.Ocr; 
using Leadtools.Forms.Processing; 
using Leadtools.Forms.Recognition; 
using Leadtools.Forms.Recognition.Barcode; 
using Leadtools.Forms.Recognition.Ocr; 
 
///This method compares the first page of a Form to the first page of a Master Form. 
FormRecognitionResult CompareFirstPage(FormRecognitionEngine recognitionEngine, 
                                       FormRecognitionAttributes master, 
                                       FormRecognitionAttributes form) 
{ 
   PageRecognitionResult resultPage = recognitionEngine.ComparePage(master, 1, form, 1); 
   FormRecognitionResult result = new FormRecognitionResult(); 
   result.Confidence = resultPage.Confidence; 
   result.LargestConfidencePageNumber = 1; 
   result.PageResults.Add(resultPage); 
   result.Reason = FormRecognitionReason.Success; 
   return result; 
} 
Imports Leadtools 
Imports Leadtools.Barcode 
Imports Leadtools.Codecs 
Imports Leadtools.Forms.Common 
Imports Leadtools.Ocr 
Imports Leadtools.Forms.Processing 
Imports Leadtools.Forms.Recognition 
Imports Leadtools.Forms.Recognition.Barcode 
Imports Leadtools.Forms.Recognition.Ocr 
 
'''This method compares the first page of a Form to the first page of a Master Form. 
Private Function CompareFirstPage(recognitionEngine As FormRecognitionEngine, master As FormRecognitionAttributes, form As FormRecognitionAttributes) As FormRecognitionResult 
   Dim resultPage As PageRecognitionResult = recognitionEngine.ComparePage(master, 1, form, 1) 
   Dim result As New FormRecognitionResult() 
   result.Confidence = resultPage.Confidence 
   result.LargestConfidencePageNumber = 1 
   result.PageResults.Add(resultPage) 
   result.Reason = FormRecognitionReason.Success 
   Return result 
End Function 
Requirements

Target Platforms

Help Version 21.0.2021.3.2
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Leadtools.Forms.Recognition Assembly