private void tmMonitorTick_Tick(object sender, EventArgs e)
{
prevCapture.Dispose();
prevCapture = currentCapture;
currentCapture = new SigmaDeltaStruct(captureRect.Width, captureRect.Height);
using (Graphics g = Graphics.FromImage(currentCapture.BitmapData.Bitmap))
{
g.CopyFromScreen(captureRect.X, captureRect.Y,
0, 0,
currentCapture.BitmapData.Bitmap.Size,
CopyPixelOperation.SourceCopy);
}
SigmaDeltaTick();
pbRegionView.Image = currentCapture.BitmapData.Bitmap;
pbMotionDetection.Image = motionEstimator.Bitmap;
lblCurrentLevel.Text = Math.Round(rmse * 100.0).ToString() + "%";
if (rmse >= (tbAlarmThreshold.Value / 100.0))
{
if (!isAlarmActive)
{
ToggleAlarm();
}
}
else
{
if (isAlarmActive)
{
ToggleAlarm();
}
}
}
public SigmaDeltaStruct(SigmaDeltaStruct sds)
{
BitmapData = (DirectBitmap)sds.BitmapData.Clone();
FirstBgEstimator = new short[sds.BitmapData.Width * sds.BitmapData.Height];
SecondBgEstimator = new short[sds.BitmapData.Width * sds.BitmapData.Height];
sds.FirstBgEstimator.CopyTo(FirstBgEstimator, 0);
sds.SecondBgEstimator.CopyTo(SecondBgEstimator, 0);
Disposed = false;
}
private void updateCaptureBitmaps()
{
if (prevCapture != null)
{
prevCapture.Dispose();
}
if (currentCapture != null)
{
currentCapture.Dispose();
}
if (motionEstimator != null)
{
motionEstimator.Dispose();
}
if (bgEstimator != null)
{
bgEstimator.Dispose();
}
prevCapture = new SigmaDeltaStruct(captureRect.Width, captureRect.Height);
currentCapture = new SigmaDeltaStruct(captureRect.Width, captureRect.Height);
motionEstimator = new DirectBitmap(captureRect.Width, captureRect.Height);
bgEstimator = new DirectBitmap(captureRect.Width, captureRect.Height);
using (Graphics g = Graphics.FromImage(currentCapture.BitmapData.Bitmap))
{
g.CopyFromScreen(captureRect.X, captureRect.Y,
0, 0,
currentCapture.BitmapData.Bitmap.Size,
CopyPixelOperation.SourceCopy);
}
using (Graphics g = Graphics.FromImage(prevCapture.BitmapData.Bitmap))
{
g.CopyFromScreen(captureRect.X, captureRect.Y,
0, 0,
prevCapture.BitmapData.Bitmap.Size,
CopyPixelOperation.SourceCopy);
}
prevCapture.PopulateEstimators();
currentCapture.PopulateEstimators();
bgEstimator.SeedWith8bppGrayscale(currentCapture.FirstBgEstimator);
}