public override void Process(TextExtractorOcrData data)
{
WFLogger.NLogger.Info("DocumentToProcess={0}", data.DocumentToProcess);
tessocr.Clear();
data.WFState.Value = WFState.WFStateFail;
System.IO.StreamWriter file = null;
try
{
IList <Image> images = GetImageList(data.DocumentToProcess);
if (images != null && images.Count > 0)
{
file = new System.IO.StreamWriter(string.Format(@"{0}.ocr", data.DocumentToProcess));
}
foreach (System.Drawing.Image image in GetImageList(data.DocumentToProcess))
{
System.Drawing.Image deskewedimage = image;
// deskew the image
gmseDeskew deskew = new gmseDeskew((System.Drawing.Bitmap)image);
double imageSkewAngle = deskew.GetSkewAngle();
if ((imageSkewAngle > MINIMUM_DESKEW_THRESHOLD || imageSkewAngle < -(MINIMUM_DESKEW_THRESHOLD)))
{
deskewedimage = ImageHelper.Rotate(image, imageSkewAngle);
}
try
{
// string tessdata = System.IO.Path.Combine(basedir, TESSDATA);
StringBuilder sb = new StringBuilder();
// if (true == tessocr.Init(tessdata, "eng", (int)OCR.TesseractWrapper.ePageSegMode.PSM_AUTO))
{
file.WriteLine(tessocr.Recognize(deskewedimage));
#if false
string prevword = string.Empty;
OCR.TesseractWrapper.DocumentLayout dl = tessocr.AnalyseLayout((System.Drawing.Bitmap)image);
foreach (OCR.TesseractWrapper.Block block in dl.Blocks)
{
foreach (OCR.TesseractWrapper.Paragraph paragraph in block.Paragraphs)
{
foreach (OCR.TesseractWrapper.TextLine line in paragraph.Lines)
{
foreach (OCR.TesseractWrapper.Word word in line.Words)
{
System.Drawing.Rectangle part = new Rectangle(word.Left, word.Top, word.Right - word.Left + 1, word.Bottom - word.Top + 1);
tessocr.UseROI = true;
tessocr.ROI = part;
string recognizedword = tessocr.Recognize(image).Replace("\n", "");
recognizedword = System.Text.RegularExpressions.Regex.Replace(recognizedword, @"[^\w\.@-]", string.Empty);
prevword = recognizedword;
}
}
sb.Append("\n");
}
sb.Append("\n");
}
#endif
}
}
catch (Exception ex)
{
WFLogger.NLogger.ErrorException("ERROR: Could not instantiate TesseractProcessor.", ex);
}
image.Dispose();
}
}
catch (Exception ex)
{
WFLogger.NLogger.ErrorException("ERROR: GetImageList failed.", ex);
}
finally
{
if (file != null)
{
file.Flush();
file.Close();
file.Dispose();
}
// image.Dispose();
}
data.WFState.Value = WFState.WFStateSuccess;
}
public override SFWorkflow.WFState Run()
{
// System.IO.FileStream fs = System.IO.File.Open(this.FileToProcess, System.IO.FileMode.Open, System.IO.FileAccess.Read, System.IO.FileShare.ReadWrite);
// byte [] inByte = new byte[fs.Length];
// fs.Read(inByte, 0, inByte.Length);
// fs.Close();
// Image imgInFile = Image.FromStream(new System.IO.MemoryStream(inByte));
// System.IO.MemoryStream myTempStream = new System.IO.MemoryStream();
// imgInFile.Save( myTempStream, System.Drawing.Imaging.ImageFormat.Tiff);
SFWorkflow.WFState retval = new SFWorkflow.WFState();
// System.Drawing.Image image = null;
try
{
foreach (System.Drawing.Image image in GetImageList(this.FileToProcess))
{
// image = new System.Drawing.Bitmap(this.FileToProcess);
// deskew the image
gmseDeskew deskew = new gmseDeskew((System.Drawing.Bitmap)image);
double imageSkewAngle = deskew.GetSkewAngle();
// if ((imageSkewAngle > MINIMUM_DESKEW_THRESHOLD || imageSkewAngle < -(MINIMUM_DESKEW_THRESHOLD)))
// image = ImageHelper.Rotate(image, imageSkewAngle);
OCR.TesseractWrapper.TesseractProcessor tessocr = new OCR.TesseractWrapper.TesseractProcessor();
try
{
string tessdata = System.IO.Path.Combine(basedir, TESSDATA);
StringBuilder sb = new StringBuilder();
if (true == tessocr.Init(tessdata, "eng", (int)OCR.TesseractWrapper.ePageSegMode.PSM_AUTO))
{
string prevword = string.Empty;
OCR.TesseractWrapper.DocumentLayout dl = tessocr.AnalyseLayout((System.Drawing.Bitmap)image);
#if false
foreach (OCR.TesseractWrapper.Block block in dl.Blocks)
{
foreach (OCR.TesseractWrapper.Paragraph paragraph in block.Paragraphs)
{
foreach (OCR.TesseractWrapper.TextLine line in paragraph.Lines)
{
foreach (OCR.TesseractWrapper.Word word in line.Words)
{
System.Drawing.Rectangle part = new Rectangle(word.Left, word.Top, word.Right - word.Left + 1, word.Bottom - word.Top + 1);
tessocr.UseROI = true;
tessocr.ROI = part;
string recognizedword = tessocr.Recognize(image).Replace("\n", "");
recognizedword = System.Text.RegularExpressions.Regex.Replace(recognizedword, @"[^\w\.@-]", string.Empty);
prevword = recognizedword;
}
}
sb.Append("\n");
}
sb.Append("\n");
}
#endif
}
}
catch (Exception ex)
{
WFLogger.NLogger.ErrorException("ERROR: Could not instantiate TesseractProcessor.", ex);
}
}
}
catch (Exception ex)
{
WFLogger.NLogger.ErrorException("ERROR: GetImageList failed.", ex);
}
finally
{
// if (image != null)
// image.Dispose();
}
retval.Value = SFWorkflow.WFState.WFStateSuccess;
return(retval);
}
