public Tracker90mmDish(int imageWidth, int imageHeight, IppiPoint dishCenter)
{
_foreground = new Image8(imageWidth, imageHeight);
_bgSubtracted = new Image8(imageWidth, imageHeight);
_calc = new Image8(imageWidth, imageHeight);
_dishCenter = dishCenter;
int bufferSize = 0;
IppHelper.IppCheckCall(cv.ippiLabelMarkersGetBufferSize_8u_C1R(new IppiSize(imageWidth, imageHeight), &bufferSize));
_markerBuffer = (byte *)Marshal.AllocHGlobal(bufferSize);
int momentSize = 0;
IppHelper.IppCheckCall(ip.ippiMomentGetStateSize_64f(IppHintAlgorithm.ippAlgHintNone, &momentSize));
_momentState = (IppiMomentState_64f *)Marshal.AllocHGlobal(momentSize);
//let ipp decide whether to give accurate or fast results
IppHelper.IppCheckCall(ip.ippiMomentInit_64f(_momentState, IppHintAlgorithm.ippAlgHintNone));
_frame = 0;
//populate tracking parameters with default values
_threshold = 6;
_minArea = 11;
_maxAllowedArea = 120;
_minEccentricity = 0.3;
_fullTrustMinArea = 20;
_imageROI = new IppiROI(0, 0, imageWidth, imageHeight);
_searchRegionSize = 90;
_removeCMOSISBrightLineArtefact = false;
_strel3x3 = Morphology.Generate3x3Mask(_foreground.Size);
//The following calculation for FramesInBackground means that after ~30s of movie
//a stationary object will have dissappeared into the background (at 63% level)
FramesInBackground = (int)((30 * 250));
FramesInitialBackground = 2 * 30 * 250;
BGUpdateEvery = 2;
}
private void Dispose(bool disposing)
{
if (_bgModel != null)
{
_bgModel.Dispose();
_bgModel = null;
}
if (_calc != null)
{
_calc.Dispose();
_calc = null;
}
if (_foreground != null)
{
_foreground.Dispose();
_foreground = null;
}
if (_bgSubtracted != null)
{
_bgSubtracted.Dispose();
_bgSubtracted = null;
}
if (_markerBuffer != null)
{
Marshal.FreeHGlobal((IntPtr)_markerBuffer);
_markerBuffer = null;
}
if (_momentState != null)
{
Marshal.FreeHGlobal((IntPtr)_momentState);
_momentState = null;
}
if (_strel3x3 != null)
{
_strel3x3.Dispose();
_strel3x3 = null;
}
}
