/// <summary>
/// Creates an instance of BackgroundSubtractorGSOC algorithm.
/// </summary>
/// <param name="mc">Whether to use camera motion compensation.</param>
/// <param name="nSamples">Number of samples to maintain at each point of the frame.</param>
/// <param name="replaceRate">Probability of replacing the old sample - how fast the model will update itself.</param>
/// <param name="propagationRate">Probability of propagating to neighbors.</param>
/// <param name="hitsThreshold">How many positives the sample must get before it will be considered as a possible replacement.</param>
/// <param name="alpha">Scale coefficient for threshold.</param>
/// <param name="beta">Bias coefficient for threshold.</param>
/// <param name="blinkingSupressionDecay">Blinking supression decay factor.</param>
/// <param name="blinkingSupressionMultiplier">Blinking supression multiplier.</param>
/// <param name="noiseRemovalThresholdFacBG">Strength of the noise removal for background points.</param>
/// <param name="noiseRemovalThresholdFacFG">Strength of the noise removal for foreground points.</param>
public BackgroundSubtractorGSOC(
BackgroundSubtractorLSBP.CameraMotionCompensation mc = BackgroundSubtractorLSBP.CameraMotionCompensation.None,
int nSamples = 20,
float replaceRate = 0.003f,
float propagationRate = 0.01f,
int hitsThreshold = 32,
float alpha = 0.01f,
float beta = 0.0022f,
float blinkingSupressionDecay = 0.1f,
float blinkingSupressionMultiplier = 0.1f,
float noiseRemovalThresholdFacBG = 0.0004f,
float noiseRemovalThresholdFacFG = 0.0008f)
{
_ptr = ContribInvoke.cveBackgroundSubtractorGSOCCreate(mc, nSamples, replaceRate, propagationRate, hitsThreshold, alpha, beta, blinkingSupressionDecay, blinkingSupressionMultiplier, noiseRemovalThresholdFacBG, noiseRemovalThresholdFacFG, ref _backgroundSubtractorPtr, ref _algorithmPtr);
}
private IBackgroundSubtractor CreateLSBPBackgroundSubtractor()
{
BackgroundSubtractorLSBP.CameraMotionCompensation cameraMotionCompensation = BackgroundSubtractorLSBP.CameraMotionCompensation.None;
int nSamples = 5, LSBPRadius = 16, LSBPthreshold = 8, minCount = 2;
float tlower = 2, tupper = 32, tinc = 1, tdec = 0.05F, rscale = 10, rincdec = 0.005F, noiseRemovalThresholdFacBG = 0.0004F, noiseRemovalThresholdFacFG = 0.0008F;
bool showWarning = false;
string warningMessage = String.Empty;
Enum.TryParse(lsbpCameraMotionCompensationCmBx.SelectedValue.ToString(), out cameraMotionCompensation);
if (int.TryParse(lsbpNSamplesTxBx.Text, out int parsedNSamples))
{
nSamples = parsedNSamples;
}
else
{
showWarning = true;
warningMessage = warningMessage + "nSamples";
}
if (int.TryParse(lsbpRadiusTxBx.Text, out int parsedLSBPRadius))
{
LSBPRadius = parsedLSBPRadius;
}
else
{
showWarning = true;
if (warningMessage == String.Empty)
{
warningMessage = warningMessage + "LSBP Radius";
}
else
{
warningMessage = warningMessage + ", LSBP Radius";
}
}
if (float.TryParse(lsbpTLowerTxBx.Text, NumberStyles.Any, CultureInfo.InvariantCulture, out float parsedTLower))
{
tlower = parsedTLower;
}
else
{
showWarning = true;
if (warningMessage == String.Empty)
{
warningMessage = warningMessage + "tlower";
}
else
{
warningMessage = warningMessage + ", tlower";
}
}
if (float.TryParse(lsbpTUpperTxBx.Text, NumberStyles.Any, CultureInfo.InvariantCulture, out float parsedTUpper))
{
tupper = parsedTUpper;
}
else
{
showWarning = true;
if (warningMessage == String.Empty)
{
warningMessage = warningMessage + "tupper";
}
else
{
warningMessage = warningMessage + ", tupper";
}
}
if (float.TryParse(lsbpTIncTxBx.Text, NumberStyles.Any, CultureInfo.InvariantCulture, out float parsedTInc))
{
tinc = parsedTInc;
}
else
{
showWarning = true;
if (warningMessage == String.Empty)
{
warningMessage = warningMessage + "tinc";
}
else
{
warningMessage = warningMessage + ", tinc";
}
}
if (float.TryParse(lsbpTDecTxBx.Text, NumberStyles.Any, CultureInfo.InvariantCulture, out float parsedTDec))
{
tdec = parsedTDec;
}
else
{
showWarning = true;
if (warningMessage == String.Empty)
{
warningMessage = warningMessage + "tdec";
}
else
{
warningMessage = warningMessage + ", tdec";
}
}
if (float.TryParse(lsbpRScaleTxBx.Text, NumberStyles.Any, CultureInfo.InvariantCulture, out float parsedRScale))
{
rscale = parsedRScale;
}
else
{
showWarning = true;
if (warningMessage == String.Empty)
{
warningMessage = warningMessage + "rscale";
}
else
{
warningMessage = warningMessage + ", rscale";
}
}
if (float.TryParse(lsbpRIncDecTxBx.Text, NumberStyles.Any, CultureInfo.InvariantCulture, out float parsedRIncDec))
{
rincdec = parsedRIncDec;
}
else
{
showWarning = true;
if (warningMessage == String.Empty)
{
warningMessage = warningMessage + "rincdec";
}
else
{
warningMessage = warningMessage + ", rincdec";
}
}
if (float.TryParse(lsbpNoiseRemovalThresholdFacBGTxBx.Text, NumberStyles.Any, CultureInfo.InvariantCulture, out float parsedNoiseRemovalThresholdFacBG))
{
noiseRemovalThresholdFacBG = parsedNoiseRemovalThresholdFacBG;
}
else
{
showWarning = true;
if (warningMessage == String.Empty)
{
warningMessage = warningMessage + "noiseRemovalThresholdFacBG";
}
else
{
warningMessage = warningMessage + ", noiseRemovalThresholdFacBG";
}
}
if (float.TryParse(lsbpNoiseRemovalThresholdFacFGTxBx.Text, NumberStyles.Any, CultureInfo.InvariantCulture, out float parsedNoiseRemovalThresholdFacFG))
{
noiseRemovalThresholdFacFG = parsedNoiseRemovalThresholdFacFG;
}
else
{
showWarning = true;
if (warningMessage == String.Empty)
{
warningMessage = warningMessage + "noiseRemovalThresholdFacFG";
}
else
{
warningMessage = warningMessage + ", noiseRemovalThresholdFacFG";
}
}
if (int.TryParse(lsbpThresholdTxBx.Text, NumberStyles.Any, CultureInfo.InvariantCulture, out int parsedLSBPThreshold))
{
LSBPthreshold = parsedLSBPRadius;
}
else
{
showWarning = true;
if (warningMessage == String.Empty)
{
warningMessage = warningMessage + "LSBP threshold";
}
else
{
warningMessage = warningMessage + ", LSBP threshold";
}
}
if (int.TryParse(lsbpMinCountTxBx.Text, NumberStyles.Any, CultureInfo.InvariantCulture, out int parsedMinCount))
{
minCount = parsedMinCount;
}
else
{
showWarning = true;
if (warningMessage == String.Empty)
{
warningMessage = warningMessage + "minCount";
}
else
{
warningMessage = warningMessage + ", minCount";
}
}
if (showWarning)
{
warningMessage = "Incorrect " + warningMessage + " value. Used defaults.";
ShowWarning("Incorrect parameters", warningMessage);
}
return(new BackgroundSubtractorLSBP(cameraMotionCompensation, nSamples, LSBPRadius
, tlower, tupper, tinc, tdec, rscale, rincdec, noiseRemovalThresholdFacBG
, noiseRemovalThresholdFacFG, LSBPthreshold, minCount));
}
