IOcrDocumentManager Interface (original) (raw)
Summary
Manages the OCR documents of this IOcrEngine.
Syntax
C#
Objective-C
C++/CLI
Java
Python
public interface IOcrDocumentManager @interface LTOcrDocumentManager : NSObject public class OcrDocumentManager public interface class IOcrDocumentManager class IOcrDocumentManager: Example
This example save a page to all the formats supported by the LEADTOOLS OCR Module - LEAD Engine.
using Leadtools;
using Leadtools.Codecs;
using Leadtools.Ocr;
using Leadtools.Forms.Common;
using Leadtools.Document.Writer;
using Leadtools.WinForms;
public void OcrDocumentManagerExample()
{
string tifFileName1 = Path.Combine(LEAD_VARS.ImagesDir, "Ocr1.tif");
string tifFileName2 = Path.Combine(LEAD_VARS.ImagesDir, "Ocr2.tif");
string outputDirectory = Path.Combine(LEAD_VARS.ImagesDir, "OutputDirectory");
// Create the output directory
if (Directory.Exists(outputDirectory))
Directory.Delete(outputDirectory, true);
Directory.CreateDirectory(outputDirectory);
// Create an instance of the engine
using (IOcrEngine ocrEngine = OcrEngineManager.CreateEngine(OcrEngineType.LEAD))
{
// Start the engine using default parameters
Console.WriteLine("Starting up the engine...");
ocrEngine.Startup(null, null, null, LEAD_VARS.OcrLEADRuntimeDir);
// Create the OCR document
Console.WriteLine("Creating the OCR document...");
IOcrDocumentManager ocrDocumentManager = ocrEngine.DocumentManager;
using (IOcrDocument ocrDocument = ocrDocumentManager.CreateDocument())
{
// Add the pages to the document
Console.WriteLine("Adding the pages...");
ocrDocument.Pages.AddPage(tifFileName1, null);
ocrDocument.Pages.AddPage(tifFileName2, null);
// Recognize the pages to this document. Note, we did not call AutoZone, it will explicitly be called by Recognize
Console.WriteLine("Recognizing all the pages...");
ocrDocument.Pages.Recognize(null);
// Save to all the formats supported by this OCR engine
Array formats = Enum.GetValues(typeof(DocumentFormat));
foreach (DocumentFormat format in formats)
{
string friendlyName = DocumentWriter.GetFormatFriendlyName(format);
Console.WriteLine("Saving (using default options) to {0}...", friendlyName);
// Construct the output file name (output_directory + document_format_name + . + extension)
string extension = DocumentWriter.GetFormatFileExtension(format);
string outputFileName = Path.Combine(outputDirectory, format.ToString() + "." + extension);
// Save the document
ocrDocument.Save(outputFileName, format, null);
// If this is the LTD format, convert it to PDF
if (format == DocumentFormat.Ltd)
{
Console.WriteLine("Converting the LTD file to PDF...");
string pdfFileName = Path.Combine(outputDirectory, format.ToString() + "_pdf.pdf");
DocumentWriter docWriter = ocrEngine.DocumentWriterInstance;
docWriter.Convert(outputFileName, pdfFileName, DocumentFormat.Pdf);
}
}
// Now save to all the engine native formats (if any) supported by the engine
string[] engineFormats = ocrDocumentManager.GetSupportedEngineFormats();
foreach (string engineFormat in engineFormats)
{
string friendlyName = ocrDocumentManager.GetEngineFormatFriendlyName(engineFormat);
Console.WriteLine("Saving to engine native format {0}...", friendlyName);
// Construct the output file name (output_directory + "engine" + engine_format_name + . + extension)
string extension = ocrDocumentManager.GetEngineFormatFileExtension(engineFormat);
string outputFileName = Path.Combine(outputDirectory, "engine_" + engineFormat + "." + extension);
// To use this format, set it in the IOcrDocumentManager.EngineFormat and do a normal save using DocumentFormat.User
// Save the document
ocrDocumentManager.EngineFormat = engineFormat;
ocrDocument.Save(outputFileName, DocumentFormat.User, null);
}
}
// Shutdown the engine
// Note: calling Dispose will also automatically shutdown the engine if it has been started
Console.WriteLine("Shutting down...");
ocrEngine.Shutdown();
}
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images";
public const string OcrLEADRuntimeDir = @"C:\LEADTOOLS22\Bin\Common\OcrLEADRuntime";
}