import org.opencv.video.BackgroundSubtractorMOG2; //导入依赖的package包/类
/**
 * Get the instance of BackgroundSubtractorMOG2 with the desired configuration.
 *
 * @param history         the number of frames to consider in the background model.
 * @param shadowThreshold the threshold to consider a pixel as shadow or not.
 * @return instance of BackgroundSubtractorMOG2.
 */
private BackgroundSubtractorMOG2 getMogInstance(int history, double shadowThreshold) {
    BackgroundSubtractorMOG2 instance =
            Video.createBackgroundSubtractorMOG2(history, VAR_THRESHOLD, DETECT_SHADOWS);
    instance.setBackgroundRatio(BACKGROUND_RATIO);
    instance.setVarInit(VAR_INIT);
    instance.setShadowThreshold(shadowThreshold);
    return instance;
}
 

import org.opencv.video.BackgroundSubtractorMOG2; //导入依赖的package包/类
/**
 * prepareOpenCVOp
 */
@Override
protected void prepareOpenCVOp(Map arg0, TopologyContext arg1)
		throws Exception 
{
	this.fgMaskMOG  = new Mat();
	this.fgMaskMOG2 = new Mat();
	this.pMOG       = new BackgroundSubtractorMOG();
	this.pMOG2      = new BackgroundSubtractorMOG2();
}
 

import org.opencv.video.BackgroundSubtractorMOG2; //导入依赖的package包/类
public BackgroundSubtractor makeMOG2() {
	
	int history = 10;
	float varThreshold = 200;
	boolean bShadowDetection = false;
	return new BackgroundSubtractorMOG2(history, varThreshold, bShadowDetection);
}