Result(ContouredImage template, List <Match> goodMatchCollection)
{
this.template = template;
MatchCollection = goodMatchCollection;
Rotation = goodMatchCollection[0].Page2Template180InvariantRotation;
Scale = goodMatchCollection[0].Page2TemplateScale;
}
public List <Result> FindOnPage(string pageFile, bool allMatches = true)
{
List <Result> results = new List <Result>();
ContouredImage page = new ContouredImage(pageFile);
//float minTemplateContourLength = Math.Max(template.GreyImage.Width, template.GreyImage.Height) / 10;
if (allMatches)
{
List <Match> matches = new List <Match>();
foreach (Contour templateContour in template.RobustContours)
{
foreach (Contour pageContour in page.RobustContours)
{
Match m = new Match(templateContour, pageContour);
if (m.CvMatch > MaxCvMatchResult)
{
continue;
}
if (Math.Abs(m.Page2Template180InvariantRotation) > MaxExpectedRotationDeviation)
{
continue;
}
if (Math.Abs(m.Page2TemplateScale - 1) > MaxExpectedScaleDeviation)
{
continue;
}
matches.Add(m);
}
}
foreach (Match m in matches)
{
List <Match> matchPossibleCollection = new List <Match>();
matchPossibleCollection.Add(m);
foreach (Contour tc in template.RobustContours)
{
if (tc == m.TemplateContour)
{
continue;
}
const float padding = 0.3f;
RotatedRect expectedRotatedRect = new RotatedRect(
new PointF(tc.RotatedRect.Center.X * m.Page2TemplateScale, tc.RotatedRect.Center.Y * m.Page2TemplateScale),
new SizeF(tc.MinAreaRectangle.Width * (m.Page2TemplateScale + padding), tc.MinAreaRectangle.Height * (m.Page2TemplateScale + padding)),
tc.Angle
);
VectorOfPointF ps = new VectorOfPointF(expectedRotatedRect.GetVertices());
Match m2 = matches.FirstOrDefault(x =>
x != m &&
x.TemplateContour == tc &&
Math.Abs(x.Page2TemplateScale - m.Page2TemplateScale) < 0.2f
//&& CvInvoke.PointPolygonTest(ps, x.PageContour.RotatedRectPoints[0], false) > 0
//&& CvInvoke.PointPolygonTest(ps, x.PageContour.RotatedRectPoints[1], false) > 0
//&& CvInvoke.PointPolygonTest(ps, x.PageContour.RotatedRectPoints[2], false) > 0
//&& CvInvoke.PointPolygonTest(ps, x.PageContour.RotatedRectPoints[3], false) > 0
);
if (m2 != null)
{
matchPossibleCollection.Add(m2);
}
}
results.Add(CreateResult(template, matchPossibleCollection));
}
results = results.OrderByDescending(x => x.MatchCollection.Count).ToList();
//if ( < Threshold)
// break;
if (results.Count > 0)
{
results = results.Where(x => x.MatchCollection.Count > 15).ToList();
VectorOfVectorOfPoint bestMatchCollectionCvContours = new VectorOfVectorOfPoint();
//results.ForEach(x => bestMatchCollectionCvContours.Push(new VectorOfPoint(x.RotatedRect.GetVertices().Select(y => new Point((int)y.X, (int)y.Y)).ToArray())));
results.ForEach(x => x.MatchCollection.ForEach(a => bestMatchCollectionCvContours.Push(a.PageContour.Points)));
MainForm.This.PageBox.Image = drawContours(page.GreyImage, bestMatchCollectionCvContours);
}
}
else
{
throw new Exception("TBD");
}
if (results.Count > 0)
{
return(results);
}
return(null);
}
public ImageDetectorByContour(string templateFile)
{
template = new ContouredImage(templateFile);
MainForm.This.TemplateBox.Image = drawContours(template.GreyImage, template.CvContours);
}
static Result Create(ContouredImage template, List <Match> goodMatchCollection)
{
return(new Result(template, goodMatchCollection));
}