←Select platform

OcrStatistic Structure

Represents processing statistic data.
public struct OcrStatistic 
@interface LTOcrStatistic : NSObject 
public class OcrStatistic 
public value class OcrStatistic : public System.ValueType  
class OcrStatistic: 

This structure contains the accuracy and timing data of the latest successful recognition process.

To obtain the statistic, use GetLastStatistic.

Note that the time spent for the text post-processing can be calculated as follows: PostProcessingTime = statistic.ReadingTime - statistic.RecognitionTime.

Note: Only the following members are available for the LEADTOOLS OCR Module - LEAD Engine


This example will show the statistics of the last recognition operation on a page.

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Ocr; 
using Leadtools.Document.Writer; 
public void OcrStatisticExample() 
   // Create an instance of the engine 
   using (IOcrEngine ocrEngine = OcrEngineManager.CreateEngine(OcrEngineType.LEAD)) 
      // Start the engine using default parameters 
      ocrEngine.Startup(null, null, null, LEAD_VARS.OcrLEADRuntimeDir); 
      string tifFileName = Path.Combine(LEAD_VARS.ImagesDir, "Ocr1.tif"); 
      string pdfFileName = Path.Combine(LEAD_VARS.ImagesDir, "Ocr1.pdf"); 
      // Create an OCR page 
      using (IOcrPage ocrPage = ocrEngine.CreatePage(ocrEngine.RasterCodecsInstance.Load(tifFileName, 1), OcrImageSharingMode.AutoDispose)) 
         // Process the page 
         ocrPage.AutoPreprocess(OcrAutoPreprocessPageCommand.Deskew, null); 
         // Recognize the page 
         // Note, Recognize can be called without calling AutoZone or manually adding zones. The engine will 
         // check and automatically auto-zones the page 
         // Show the statistic about the last recognize operation 
         OcrStatistic statistic = ocrEngine.GetLastStatistic(); 
         Console.WriteLine("Recognized characters: {0}", statistic.RecognizedCharacters); 
         Console.WriteLine("Recognized words: {0}", statistic.RecognizedWords); 
         Console.WriteLine("Rejected characters: {0}", statistic.RejectedCharacters); 
         Console.WriteLine("Corrected words: {0}", statistic.CorrectedWords); 
         Console.WriteLine("Recognition time: {0} ms", statistic.RecognitionTime); 
         Console.WriteLine("Reading time: {0} ms", statistic.ReadingTime); 
         Console.WriteLine("Image Preprocessing time: {0} ms", statistic.ImagePreprocessingTime); 
         Console.WriteLine("Decomposition time: {0} ms", statistic.DecompositionTime); 
         Console.WriteLine("Post processing time: {0} ms", statistic.ReadingTime - statistic.RecognitionTime); 
      // Shutdown the engine 
      // Note: calling Dispose will also automatically shutdown the engine if it has been started 
static class LEAD_VARS 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
   public const string OcrLEADRuntimeDir = @"C:\LEADTOOLS22\Bin\Common\OcrLEADRuntime"; 

Target Platforms

Help Version 22.0.2023.3.31
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.

Leadtools.Ocr Assembly

Products | Support | Contact Us | Intellectual Property Notices
© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.