public string OCR(System.Drawing.Bitmap image)
{
string text = "";
string text2 = "";
try
{
string tessdata = @"tessdata";
Tesseract tesseract = new Tesseract();
tesseract.Clear();
tesseract.SetVariable("tessedit_char_whitelist", "123456789abcdefghijklmnpqrstuvwxyz");
tesseract.SetVariable("tessedit_adaption_debug", true);
tesseract.SetVariable("tessedit_ambigs_training ", true);
tesseract.Init(tessdata, "eng", false);
Bitmap originalImage = image;
double needdedHeigth = Convert.ToDouble(image.Height + 10);
double faktor = needdedHeigth / (double)(originalImage.Height);
int newWidth = Convert.ToInt32(faktor * (double)originalImage.Width);
Bitmap ORCImage = new Bitmap(originalImage, newWidth, Convert.ToInt32(needdedHeigth));
System.Collections.Generic.List <Word> list = tesseract.DoOCR(ORCImage, System.Drawing.Rectangle.Empty);
System.Collections.Generic.List <Word> list2 = tesseract.DoOCR(image, System.Drawing.Rectangle.Empty);
image.Dispose();
foreach (Word current in list)
{
text2 += current.Text;
}
foreach (Word current3 in list2)
{
text += current3.Text;
}
if (text.Length != 4)
{
text = text2;
}
}
catch (System.Exception value)
{
System.Console.WriteLine(value);
}
return(text.Replace(" ", ""));
}
public void Dispose()
{
_ocr.Clear();
_ocr.Dispose();
_ocr = null;
}
