private void OCR(byte[] fileName)
{
using (var engine = new TesseractEngine(@"./tessdata", "eng", EngineMode.Default))
{
using (var img = Pix.LoadTiffFromMemory(fileName))
{
var i = 1;
using (var page = engine.Process(img))
{
Message = page.GetText();
OCRRow row = new OCRRow();
using (var iter = page.GetIterator())
{
iter.Begin();
do
{
if (iter.IsAtBeginningOf(PageIteratorLevel.TextLine))
{
listOCRRow.Add(row);
row = new OCRRow();
row.Row = iter.GetText(PageIteratorLevel.TextLine);
row.Confidence = iter.GetConfidence(PageIteratorLevel.TextLine);
}
WordInfo wordInfo = new WordInfo();
wordInfo.Word = iter.GetText(PageIteratorLevel.Word);
if (!string.IsNullOrWhiteSpace(wordInfo.Word))
{
Pix pix = iter.GetImage(PageIteratorLevel.Word, 0, out wordInfo.XPos, out wordInfo.YPos);
wordInfo.Width = pix.Width;
wordInfo.Height = pix.Height;
wordInfo.Confidence = iter.GetConfidence(PageIteratorLevel.Word);
row.ListWord.Add(wordInfo);
}
i++;
}while (iter.Next(PageIteratorLevel.Word));
listOCRRow.Add(row);
}
}
}
}
}
private void SetOCRRow(ref TOCRRESULTS Results, ref List <WordInfo> listWord, ref List <Character> listCharacter, ref int index, int ItemNo)
{
int wordIndex = 1;
if (Convert.ToChar(Results.Item[ItemNo].OCRCha) != 13)
{
if (Convert.ToChar(Results.Item[ItemNo].OCRCha) != ' ')
{
Character character2 = new Character()
{
Value = Convert.ToChar(Results.Item[ItemNo].OCRCha).ToString(),
Confidence = Results.Item[ItemNo].Confidence,
XDim = Results.Item[ItemNo].XDim,
XPos = Results.Item[ItemNo].XPos,
YDim = Results.Item[ItemNo].YDim,
YPos = Results.Item[ItemNo].YPos,
};
listCharacter.Add(character2);
}
if (Convert.ToChar(Results.Item[ItemNo].OCRCha) == ' ')
{
WordInfo word = new WordInfo()
{
//ListCharacter = listCharacter
Word = string.Join("", listCharacter.Select(x => x.Value)),
ListCharacter = listCharacter,
Height = listCharacter.Max(x => x.YDim),
Width = listCharacter.Count == 1 ? listCharacter.First().XDim : listCharacter.Last().XPos - listCharacter.First().XPos + listCharacter.Last().XDim,
XPos = listCharacter.First().XPos,
YPos = listCharacter.First().YPos,
Confidence = listCharacter.Sum(x => x.Confidence) / listCharacter.Count * 100,
Position = wordIndex,
CorrectWord = string.Empty,
};
listCharacter = new List <Character>();
listWord.Add(word);
wordIndex++;
}
}
else
{
WordInfo word = new WordInfo()
{
//ListCharacter = listCharacter
Word = string.Join("", listCharacter.Select(x => x.Value)),
ListCharacter = listCharacter,
Height = listCharacter.Max(x => x.YDim),
Width = listCharacter.Count == 1 ? listCharacter.First().XDim : listCharacter.Last().XPos - listCharacter.First().XPos + listCharacter.Last().XDim,
XPos = listCharacter.First().XPos,
YPos = listCharacter.First().YPos,
Confidence = listCharacter.Sum(x => x.Confidence) / listCharacter.Count * 100,
CorrectWord = string.Empty,
Position = wordIndex,
};
listCharacter = new List <Character>();
listWord.Add(word);
wordIndex++;
OCRRow info = new OCRRow()
{
ListWord = listWord,
Row = string.Join(" ", listWord.Select(x => x.Word)),
Position = index,
CorrectRow = string.Empty,
Confidence = listWord.Sum(x => x.Confidence) / listWord.Count,
};
listOCRRow.Add(info);
listWord = new List <WordInfo>();
index++;
}
if (ItemNo == Results.Hdr.NumItems - 1)
{
WordInfo word = new WordInfo()
{
//ListCharacter = listCharacter
Word = string.Join("", listCharacter.Select(x => x.Value)),
ListCharacter = listCharacter,
Height = listCharacter.Max(x => x.YDim),
Width = listCharacter.Count == 1 ? listCharacter.First().XDim : listCharacter.Last().XPos - listCharacter.First().XPos + listCharacter.Last().XDim,
XPos = listCharacter.First().XPos,
YPos = listCharacter.First().YPos,
Confidence = listCharacter.Sum(x => x.Confidence) / listCharacter.Count * 100,
CorrectWord = string.Empty,
Position = wordIndex,
};
listCharacter = new List <Character>();
listWord.Add(word);
wordIndex++;
OCRRow info = new OCRRow()
{
ListWord = listWord,
Row = string.Join(" ", listWord.Select(x => x.Word)),
Position = index,
CorrectRow = string.Empty,
Confidence = listWord.Sum(x => x.Confidence) / listWord.Count,
};
listOCRRow.Add(info);
listWord = new List <WordInfo>();
index++;
}
}
