private void DoUpdaterWork()
{
while (true)
{
if (m_updateState == UpdateState.NotNeeded)
{
continue;
}
// make copies
Contour inputContour = null;
bool checkBoth = false;
bool autoUpdateInfo = false;
Invoke(() =>
{
inputContour = ContourInput.Contour;
checkBoth = CheckBothDirections;
autoUpdateInfo = AutoUpdateInfoInCollection;
});
if (inputContour == null)
{
continue;
}
ContoursMatcher.Match bestMatch = m_matcher.GetMatch(inputContour, true);
if (bestMatch == null)
{
continue;
}
Invoke(() => BestMatchContourInfoPresenter.ContourInfo = bestMatch.FamiliarContour);
// Expensive operation for big collections. Do with background priority to increase responsibility
if (m_updateState == UpdateState.ForceUpdate || autoUpdateInfo)
{
InvokeAsync(() =>
{
foreach (var cInfo in Contours)
{
cInfo.SendDynamicInfosChangedNotification();
}
}, DispatcherPriority.Background);
}
m_updateState = UpdateState.NotNeeded;
}
}
private void ProcessFrame()
{
UnmanagedImage unpreprocessedCopy = m_currentUnpreprocessed.Clone();
m_currentPreprocessed = m_preprocessingFilters.Apply(unpreprocessedCopy);
Bitmap image = new Bitmap(m_currentPreprocessed.Width, m_currentPreprocessed.Height, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
Graphics graphics = Graphics.FromImage(image);
if (m_showMode == ShowImageMode.Source)
{
graphics.DrawImageUnscaled(m_currentUnpreprocessed.ToManagedImage(), 0, 0);
}
else
{
graphics.DrawImageUnscaled(m_currentPreprocessed.ToManagedImage(), 0, 0);
}
m_blobExtractor.ProcessImage(m_currentPreprocessed);
var blobs = m_blobExtractor.GetObjects(m_currentPreprocessed, false);
lock (m_findedContours)
{
m_findedContours.Clear();
foreach (var blob in blobs)
{
Contour contour = m_extractor.Extract(blob.Image);
m_findedContours.Add(new FindedContourInfo()
{
Contour = contour.BringLength(m_targetContoursLenght),
CenterOfGravity = blob.CenterOfGravity,
Rect = blob.Rectangle
});
}
foreach (var finded in m_findedContours)
{
ContoursMatcher.Match bestMatch = m_matcher.GetMatch(finded.Contour);
if (bestMatch != null)
{
var text = string.Format("{0}", bestMatch.FamiliarContour.Description, bestMatch.MaxNSP.AbsoluteValue());
var textPosition = new PointF(finded.Rect.Left + finded.Rect.Width / 2, finded.Rect.Bottom);
graphics.DrawString(text, m_font, m_textBrush, textPosition);
if (m_showAngle)
{
graphics.DrawString(string.Format("{0:F0}°", bestMatch.MaxNSP.ArgumentDegrees()), m_font, m_textBrush, PointF.Add(textPosition, new Size(0, 13)));
}
if (m_showBoundingRect)
{
graphics.DrawRectangle(Pens.Green, finded.Rect);
}
}
}
}
ImageBox.Image = image;
BlobsCountLabel.Text = string.Format("blobs count: {0}", blobs.Length);
}