Detects different zones (Text, Graphic and Tables) in an image automatically. This is an important feature for OCR pre-processing to improve the recognition results. This function is useful for any application that needs to automatically separate images, tables and text within mixed raster content (MRC) images.
public class AutoZoningCommand : RasterCommand
Public Class AutoZoningCommand
Inherits RasterCommand
@interface LTAutoZoningCommand : LTRasterCommand
public class AutoZoningCommand extends RasterCommand
public ref class AutoZoningCommand : public RasterCommand
Note:This command is supported in LEADTOOLS Document Imaging and higher.
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Core;
public void AutoZoningCommandExample()
{
// Load an image
RasterCodecs codecs = new RasterCodecs();
codecs.ThrowExceptionsOnInvalidImages = true;
RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Sample.mrc"));
// Prepare the command
AutoZoningCommand command = new AutoZoningCommand();
command.Options = AutoZoningOptions.DontAllowOverlap |
AutoZoningOptions.DetectAccurateZones |
AutoZoningOptions.DetectAll |
AutoZoningOptions.UseMultiThreading;
//Apply the AutoZoning
command.Run(image);
for (int i = 0; i < command.Zones.Count; i++)
{
MessageBox.Show("Location :" + command.Zones[i].Bounds.ToString() +
"\n" + "Type :" + command.Zones[i].Type.ToString());
}
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.Core
Public Sub AutoZoningCommandExample()
' Load an image
Dim codecs As RasterCodecs = New RasterCodecs()
codecs.ThrowExceptionsOnInvalidImages = True
Dim image As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Sample.mrc"))
' Prepare the command
Dim command As AutoZoningCommand = New AutoZoningCommand()
command.Options = AutoZoningOptions.DontAllowOverlap Or
AutoZoningOptions.DetectAccurateZones Or
AutoZoningOptions.DetectAll Or
AutoZoningOptions.UseMultiThreading
' Apply the AutoZoning
command.Run(image)
Dim i As Integer
For i = 0 To command.Zones.Count - 1
MessageBox.Show("Location :" + command.Zones(i).Bounds.ToString() + "\n" + "Type :" + command.Zones(i).Type.ToString())
Next
End Sub
Public NotInheritable Class LEAD_VARS
Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class
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