L_OcrPage_Recognize

#define MAKE_IMAGE_PATH(pFileName) TEXT("C:\\Users\\Public\\Documents\\LEADTOOLS Images\\")pFileName 
#define OCR_ADVANTAGE_RUNTIME_DIR TEXT("C:\\LEADTOOLS 19\\Bin\\Common\\OcrAdvantageRuntime") 
void ShowZonesInfo(L_OcrPage ocrPage) 
{ 
   L_UINT count = 0; 
   L_OcrPage_GetZoneCount(ocrPage, &count); 
   if(count < 1) 
      std::cout << "No Zone information exists to output."; 
   std::cout << "Zones:\n"; 
   for(L_UINT index = 0; index < count; index++) 
   { 
      L_OcrZone ocrZone; 
      ocrZone.StructSize = sizeof(L_OcrZone); 
      L_OcrPage_GetZoneAt(ocrPage, index, &ocrZone); 
      std::cout << "Zone index: " << index << std::endl; 
      std::cout << "  Id                  " << ocrZone.Id << std::endl; 
      std::cout << "  Bounds              (" << ocrZone.Bounds.left << "," 
      << ocrZone.Bounds.top << "," 
      << ocrZone.Bounds.right << "," 
      << ocrZone.Bounds.bottom << ")\n"; 
      std::cout << "  ZoneType            " << ocrZone.ZoneType << std::endl; 
      std::cout << "  CharacterFilters:   " << ocrZone.CharacterFilters << std::endl; 
      std::cout << "----------------------------------\n"; 
   } 
} 
L_INT L_OcrPage_RecognizeExample() 
{ 
   L_OcrEngine ocrEngine = NULL; 
   L_OcrDocumentManager ocrDocumentManager = NULL; 
   L_OcrDocument ocrDocument = NULL; 
   BITMAPHANDLE bitmap     = { 0 }, 
   tempBitmap = { 0 }; 
   L_OcrPage ocrPage = NULL; 
   L_BOOL recognized = false; 
   // Create an instance of the engine 
   L_INT retCode = L_OcrEngineManager_CreateEngine(L_OcrEngineType_Advantage, &ocrEngine); 
   if(retCode != SUCCESS) 
      return retCode; 
   // Start the engine using default parameters 
   std::cout << "Starting up the engine...\n"; 
   retCode = L_OcrEngine_Startup(ocrEngine, NULL, OCR_ADVANTAGE_RUNTIME_DIR); 
   if(retCode != SUCCESS) 
      goto CLEANUP; 
   // Load an image to process 
   retCode = L_LoadBitmap(MAKE_IMAGE_PATH(L_TEXT("Ocr1.tif")), &bitmap, sizeof(BITMAPHANDLE), 0, ORDER_RGB, NULL, NULL); 
   if(retCode != SUCCESS) 
      goto CLEANUP; 
   // Add an image to OCR page. Transfer ownership of the bitmap to the page 
   retCode = L_OcrPage_FromBitmap(ocrEngine, &ocrPage, &bitmap, L_OcrBitmapSharingMode_AutoFree, NULL, NULL); 
   if(retCode != SUCCESS) 
      goto CLEANUP; 
   // At this point, we have a valid page and bitmap ownership has transfered, so, we do not need to free the bitmap anymore 
   bitmap.Flags.Allocated = 0; 
   // Auto-recognize the zones in the page 
   retCode = L_OcrPage_AutoZone(ocrPage, NULL, NULL); 
   if(retCode != SUCCESS) 
      goto CLEANUP; 
   retCode = L_OcrPage_GetBitmap(ocrPage, L_OcrPageBitmapType_Original, &tempBitmap, sizeof(BITMAPHANDLE)); 
   if(retCode != SUCCESS) 
      goto CLEANUP; 
   // Show its information 
   std::cout << "Size: " << tempBitmap.Width << " by " << tempBitmap.Height <<" pixels\n"; 
   std::cout << "Resolution: " << tempBitmap.XResolution << "by " << tempBitmap.YResolution << " dots/inch\n"; 
   std::cout << "Bits/Pixel: " << tempBitmap.BitsPerPixel << ", Bytes/Line: " << tempBitmap.BytesPerLine << std::endl; 
   L_RGBQUAD* palette = tempBitmap.pPalette; 
   int paletteEntries; 
   if (&palette != NULL) 
      paletteEntries = sizeof(palette) / 3; 
   else 
      paletteEntries = 0; 
   std::cout << "Number of entries in the palette: " << paletteEntries << std::endl; 
   std::cout << "Original format of this page: " << tempBitmap.OriginalFormat << std::endl; 
   retCode = L_OcrPage_IsRecognized(ocrPage, &recognized); 
   if(retCode != SUCCESS) 
      goto CLEANUP; 
   std::cout << "Has this page been recognized? : " << recognized << std::endl; 
   // Output zone information 
   ShowZonesInfo(ocrPage); 
   // Recognize it and save it as PDF 
   retCode = L_OcrPage_Recognize(ocrPage, NULL, NULL); 
   if(retCode != SUCCESS) 
      goto CLEANUP; 
   // Get the document manager 
   retCode = L_OcrEngine_GetDocumentManager(ocrEngine, &ocrDocumentManager); 
   if(retCode != SUCCESS) 
      goto CLEANUP; 
   // Create an OCR document 
   retCode = L_OcrDocumentManager_CreateDocument(ocrDocumentManager, &ocrDocument, L_OcrCreateDocumentOptions_AutoDeleteFile, NULL); 
   if(retCode != SUCCESS) 
      goto CLEANUP; 
   // In Document File Mode, add OcrPage to OcrDocument after recognition 
   retCode = L_OcrDocument_AddPage(ocrDocument, ocrPage); 
   if(retCode != SUCCESS) 
      goto CLEANUP; 
   retCode = L_OcrDocument_Save(ocrDocument, MAKE_IMAGE_PATH(L_TEXT("Ocr1.pdf")), DOCUMENTFORMAT_PDF, NULL, NULL); 
CLEANUP: 
   if(bitmap.Flags.Allocated) 
      L_FreeBitmap(&bitmap); 
   if(ocrPage != NULL) 
      L_OcrPage_Destroy(ocrPage); 
   if(ocrDocument != NULL) 
      L_OcrDocument_Destroy(ocrDocument); 
   if(ocrEngine != NULL) 
      L_OcrEngine_Destroy(ocrEngine); 
   return retCode; 
}