RegionOfInterestRectangles Property

Summary

List of LeadRect objects which specify which portion of the page image represents the important features of the page.

Syntax

C++/CLI

Java

Python

public IList<LeadRect> RegionOfInterestRectangles { get; }

public java.util.List<LeadRect> getRegionOfInterestRectangles();

public: 
property IList<LeadRect>^ RegionOfInterestRectangles { 
   IList<LeadRect>^ get(); 
}

RegionOfInterestRectangles # get  (PageRecognitionOptions)

Property Value

List of LeadRect objects representing the important areas of the form.

Remarks

If it has no rectangle then all image features will have the same influence in recognition results.

Example

using Leadtools.Forms.Common; 
using Leadtools.Forms.Recognition; 
using Leadtools.Codecs; 
 
///This method add a page to the form attributes. 
public void AddPageToFormAttributes(RasterImage page, FormRecognitionAttributes attributes, FormRecognitionEngine engine) 
{ 
   PageRecognitionOptions pageOptions = new PageRecognitionOptions(); 
   pageOptions.AutoCleanUp = true; 
   pageOptions.UpdateImage = true; 
   pageOptions.TradeoffMode = FormsTradeoffMode.Accurate; 
   //Page is normal page, Not a card  
   pageOptions.PageType = FormsPageType.Normal; 
   pageOptions.IncludeRectangles.Add(new LeadRect(0, 0, page.Width, page.Height)); 
   pageOptions.ExcludeRectangles.Add(new LeadRect(page.Width * 6 / 10, 
                                                          page.Height * 4 / 10, 
                                                          page.Width * 3 / 10, 
                                                          page.Height * 2 / 10)); 
   pageOptions.RegionOfInterestRectangles.Add(new LeadRect(page.Width * 1 / 10, 
                                                                   page.Height * 1 / 10, 
                                                                   page.Width * 2 / 10, 
                                                                   page.Height * 2 / 10)); 
   FormRecognitionProperties properties = engine.GetFormProperties(attributes); 
   if (properties.IsMaster) 
   { 
      engine.OpenMasterForm(attributes); 
      engine.AddMasterFormPage(attributes, page, pageOptions); 
      engine.CloseMasterForm(attributes); 
   } 
   else 
   { 
      engine.OpenForm(attributes); 
      engine.AddFormPage(attributes, page, pageOptions); 
      engine.CloseForm(attributes); 
   } 
}

Requirements

Target Platforms

Reference

PageRecognitionOptions Class

PageRecognitionOptions Members

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Help Version 22.0.2023.3.31

Leadtools.Forms.Recognition Assembly

Introduction

Getting Started

Namespaces

Leadtools.Forms.Recognition Namespace

Assemblies