private int CheckForPattern(TesseractService tess, Mat image, ref double ratioX, ref double ratioY)
{
Database db = new Database();
string SQL = "SELECT * FROM OCR_2018.dbo.T003_Pattern";
SqlDataReader data = (SqlDataReader)db.Execute(SQL, CONSTANTS.Operation.SELECT);
List <Pattern> patterns = new List <Pattern>();
while (data.Read())
{
var pat = new Pattern();
pat.Patter_ID = (int)data[0];
pat.Lang = (string)data[1];
pat.Resolution_X = (int)data[2];
pat.Resolution_Y = (int)data[3];
patterns.Add(pat);
}
data.Close();
foreach (Pattern id in patterns)
{
PreviewObject p;
ratioX = image.Width / id.Resolution_X;
ratioY = image.Height / id.Resolution_Y;
if (tess.CheckImageForPatternAndGetDataFromIt(image, GetKeysPossitions(id.Patter_ID, db, true), null, out p, ratioX, ratioY, true))
{
return(id.Patter_ID);
}
}
return(-1);
}
public void GetConfidence()
{
TesseractService tess = new TesseractService(_lang);
Confidence = tess.GetConfidenceForOrientation(_img, Angle);
Finished = true;
}
public async Task StartService()
{
foreach (FileToProcess s in _filesToProcess)
{
var progress = new Progress <int>(percent =>
{
if ((s.ProgressBar.Value + percent) > 100)
{
s.ProgressBar.Value = 100;
}
else
{
s.ProgressBar.Value = s.ProgressBar.Value + percent;
}
});
await Task.Run(async() =>
{
var _cvService = OpenCVImageService.GetInstance();
if (SETTINGS.UseGoogleVision)
{
Annotate anotate = new Annotate();
_cvService.PrepareImageForGoogle(s.Path, progress, SETTINGS.TesseractLang);
await anotate.GetText(_cvService.Rotated, SETTINGS.GoogleLang, "TEXT_DETECTION");
var response = anotate.Response;
PreviewObject p = new PreviewObject();
p.Path = s.Path;
p.Lang = SETTINGS.TesseractLang;
p.Img = _cvService.bmp;
p.Lines = MakeLinesFromWord(response);
ProcessLines(p, progress);
_previewObjects.Add(p);
}
else
{
TesseractService tess = new TesseractService(SETTINGS.TesseractLang);
_cvService.PrepareImage(s.Path, progress, SETTINGS.TesseractLang);
Mat image = _cvService.Rotated;
double ratioX = 1;
double ratioY = 1;
var id = CheckForPattern(tess, image, ref ratioX, ref ratioY);
if (id == -1)
{
PreviewObject p = tess.ProcessImage(image, progress);
p.Path = s.Path;
ProcessLines(p, progress);
_previewObjects.Add(p);
}
else
{
PreviewObject prew;
// pattern found => use it
tess.CheckImageForPatternAndGetDataFromIt(image, GetKeysPossitions(id), progress, out prew, ratioX, ratioY);
prew.Path = s.Path;
_previewObjects.Add(prew);
}
}
});
s.ProgressBar.Value = 100;
s.Button.Enabled = true;
}
}