static void Main(string[] args)
{
//Initialize OCR processor
OCRProcessor processor = new OCRProcessor(@"../../../../../../Data/TesseractBinaries/3.02/");
//Load a PDF document
PdfLoadedDocument lDoc = new PdfLoadedDocument("../../../../../../Data/Invoice_scanned.pdf");
//Set OCR language to process
processor.Settings.Language = Languages.English;
OCRLayoutResult hocrBounds;
processor.PerformOCR(lDoc, @"../../../../../../Data/Tessdata/", out hocrBounds);
StreamWriter writer = new StreamWriter("data.txt");
foreach (Page pages in hocrBounds.Pages)
{
foreach (Line line in pages.Lines)
{
writer.WriteLine(line.Text);
}
}
writer.Close();
lDoc.Close(true);
processor.Dispose();
}
private void CreateTxtFromPDF(string filename)
{
//ScanPageStatus scanPageStatus = new ScanPageStatus();
string tesseractPath = Path.Combine(AssemblyDirectory(), GetConstants.TesseractBinaries());
string tesseractData = Path.Combine(AssemblyDirectory(), GetConstants.TesseractData());
try {
using (OCRProcessor processor = new OCRProcessor(tesseractPath))
{
//Stream pdfStream2 = filename; // FileUpload1.PostedFile.InputStream;
// Read in PDF image file, and convert to searchable TXT pdf file
PdfLoadedDocument IDoc = new PdfLoadedDocument(filename);
processor.Settings.Language = Languages.English;
processor.Settings.Performance = Performance.Slow;
// var zz = processor.Settings.Performance;
//string tessdata = tesseractPath + @"\\Tessdata\\";
processor.PerformOCR(IDoc, tesseractData);
string outFileName = Path.GetFileName(filename) + "_OCR" + Path.GetExtension(filename);
string homePath = Path.GetDirectoryName(Path.GetDirectoryName(filename));
string savePath = Path.Combine(homePath, GetConstants.Directory("out"), outFileName);
// If file exists - delete it first.
if (File.Exists(savePath))
{
File.SetAttributes(savePath, FileAttributes.Normal);
File.Delete(savePath);
}
IDoc.Save(savePath);
IDoc.Close(true);
IDoc.Dispose();
scanPageStatus.scannedFileName = savePath;
scanPageStatus.rc = 0;
scanPageStatus.statusMessage = String.Format("File {0} scanned and saved to {1}", filename, scanPageStatus.scannedFileName);
}
}
catch (Exception ex)
{
scanPageStatus.scannedFileName = "";
scanPageStatus.statusMessage = String.Format("Error {0} when running OCR on source file {1}", ex, filename);
scanPageStatus.rc = -1;
}
// return scanPageStatus;
}
