C++ cv::Rect类代码示例

bool GeoMapEditor::addMouseObject( // пытаемся добавить новый объект вытянув или кликнув мышкой
    cv::Rect& rect, // note: in-out -- подкручиваем ректангл по законам первого рождения для данного объекта
    int flags )
{
  
  if (objType() == "AGM_Segm")
  {
    Point xyTL = rect.tl();
    Point xyBR = rect.br();
    GeoSheet& sh = gm.sheets[ cur_sheet ];
    Point2d enTL = sh.xy2en( xyTL );
    Point2d enBR = sh.xy2en( xyBR );

    AGM_Segm* ps = new AGM_Segm(enTL, enBR);
    gm.objects.push_back(cv::Ptr<AGM_Segm>(ps));
  }
  else
  {
    Point xy = center( rect );
    GeoSheet& sh = gm.sheets[ cur_sheet ];
    Point2d en = sh.xy2en( xy );
    AGM_Point* pp = new AGM_Point( en );
    gm.objects.push_back(cv::Ptr<AGM_Point>(pp));
  }

  return true;
};

static bool checkColision(const cv::Rect &a, const cv::Rect &b){
	if (b.contains(a.tl())) return true;
	if (b.contains(a.br())) return true;
	if (b.contains(cv::Point(a.x+a.width,a.y))) return true;
	if (b.contains(cv::Point(a.x,a.y+a.height))) return true;
	return false;
}

void LevelTracker::setRegion(const cv::Rect &roi)
{
    topLeft=roi.tl();
    bottonRight=roi.br();
    if(topLeft.x<bottonRight.x && topLeft.y<bottonRight.y)
        regOk=true;
}

bool findTop(cv::Point& top, int& topVal, cv::Mat* src, cv::Rect rect){
	cv::Point res(0, 0);
	int x = 0, y = 0;
	bool bFound = false;

	topVal = 65535;

	if (!src->empty()){
		try
		{
			for (int i = rect.tl().y; i < rect.br().y; ++i){
				for (int j = rect.tl().x; j < rect.br().x; ++j){
						{
							Int16 curVarVec = Convert::ToInt16((src->at<Int16>(cv::Point(j, i))) * 255.0f / 8191.0f);
							if (curVarVec < topVal && curVarVec > 0)
							{
								topVal = curVarVec;
								x = j;
								y = i;
								bFound = true;
							}
						}
				}
			}
		}
		catch(...)
		{
			// DO NOTHING
		}
	}
	//ht.nNose = src->at<Int16>(0,0);
	if(bFound) top = cv::Point(x,y);

	return bFound;
}

double overlapJaccard(cv::Rect& r1,cv::Rect& r2){
 
    double overlap=(r1 & r2).area();
    
    double overlapJaccard=overlap/(r1.area()+r2.area()-overlap);
    
    return overlapJaccard;
}

inline static cv::Point center(const cv::Rect &rc)
{
	std::vector<cv::Point> pts;
	pts.push_back(rc.tl());
	pts.push_back(rc.br());

	return center(pts);
}

// A litte subroutine to draw a box onto an image
//
void draw_box(cv::Mat& img, cv::Rect box) {
	cv::rectangle(
		img,
		box.tl(),
		box.br(),
		cv::Scalar(0x00, 0x00, 0xff) /* red */
		);
}

//[0; 1] (0.5 when different_area == common_area)
inline float rect_similarity(const cv::Rect &r1, const cv::Rect &r2)
{
	float common = (r1 & r2).area();
	float different = (r1.area() + r2.area() - 2.0f * common);
	if (different > FLT_EPSILON)
		return std::min(0.5f * common / different, 1.0f);
	else
		return 1.0f;
}

void BlobPeople::update(const cv::Rect& track) {
    cur = toOf(track).getCenter();
    smooth.interpolate(cur, 0.5);
    height = track.tl().y-track.br().y;
    bottom = track.br().y;
    left = track.tl().x;
    right = track.br().x;

    
}

void Rectangle::set(const cv::Rect &_rect)
{
    rect = _rect;
    tl = _rect.tl();
    br = _rect.br();
    left->set(tl, cv::Point(tl.x, br.y));
    top->set(tl, cv::Point(br.x, tl.y));
    bottom->set(tl, cv::Point(tl.x, br.y));
    right->set(cv::Point(br.x, tl.y), cv::Point(tl.x, br.y));
    info.set(_rect);
}

/**
 * @brief Scales and translates a facebox. Useful for converting
 * between face boxes from different face detectors.
 *
 * To convert from V&J faceboxes to ibug faceboxes, use a scaling
 * of 0.85 and a translation_y of 0.2.
 * Ideally, we would learn the exact parameters from data.
 *
 * @param[in] facebox Input facebox.
 * @param[in] scaling The input facebox will be scaled by this factor.
 * @param[in] translation_y How much, in percent of the original facebox's width, the facebox will be translated in y direction. A positive value means facebox moves downwards.
 * @return The rescaled facebox.
 */
cv::Rect rescale_facebox(cv::Rect facebox, float scaling, float translation_y)
{
	// Assumes a square input facebox to work? (width==height)
	const auto new_width = facebox.width * scaling;
	const auto smaller_in_px = facebox.width - new_width;
	const auto new_tl = facebox.tl() + cv::Point2i(smaller_in_px / 2.0f, smaller_in_px / 2.0f);
	const auto new_br = facebox.br() - cv::Point2i(smaller_in_px / 2.0f, smaller_in_px / 2.0f);
	cv::Rect rescaled_facebox(new_tl, new_br);
	rescaled_facebox.y += facebox.width * translation_y;
	return rescaled_facebox;
};

float jaccardSimilarity(cv::Rect bbox1, cv::Rect bbox2) {
	cv::Vec4i bi(std::max(bbox1.x, bbox2.x), std::max(bbox1.y,bbox2.y), std::min(bbox1.br().x,bbox2.br().x), std::min(bbox1.br().y,bbox2.br().y));
	int iw = bi[2] - bi[0];
	int ih = bi[3] - bi[1];
	if (iw > 0 && ih > 0) {
		int un = (bbox1.br().x - bbox1.x) * (bbox1.br().y - bbox1.y) +
		(bbox2.br().x - bbox2.x) * (bbox2.br().y - bbox2.y) - iw * ih;
		return iw * ih / float(un);
	}

	return 0.f;
}

void CallBackFunc(int evnt, int x, int y, int flags, void* userdata) {
	if (evnt == cv::EVENT_LBUTTONDOWN) {
		mouseButtonDown = true;
		targetSelected = false;
		boundingRect = cv::Rect(0,0,0,0);
		point1 = cv::Point(x,y);
		cv::destroyWindow(targetName);
		cv::destroyWindow(ColorTracker.getColorSquareWindowName());
		targetImage.release();
	}
	if (evnt == cv::EVENT_MOUSEMOVE) {
		if (x < 0) x = 0;
		else if (x > image.cols) x = image.cols;
		if (y < 0) y = 0;
		else if (y > image.rows) y = image.rows;
		point2 = cv::Point(x,y);
		if (mouseButtonDown) {
			boundingRect = cv::Rect(point1,point2);
		}
		cv::imshow(imageName,image);
	}
	if (evnt == cv::EVENT_LBUTTONUP) {
		mouseButtonDown = false;
		if (boundingRect.area() != 0) {
			targetImage = image(calibratedRect(boundingRect));
			cv::imshow(targetName, targetImage);
		}
		else {
			boundingRect = cv::Rect(point1-cv::Point(5,5),point1+cv::Point(5,5));
			targetImage = image(calibratedRect(boundingRect));
			cv::imshow(targetName, targetImage);
		}
		targetSelected = true;
    }
}

void drawQuadrants(cv::Point targetCoord) {
	cv::line(image, cv::Point(0, centerPoint.y), cv::Point(frameWidth, centerPoint.y), blackColor);
	cv::line(image, cv::Point(centerPoint.x, 0), cv::Point(centerPoint.x, frameHeight), blackColor);
	if (targetCoord != cv::Point(999,999)) {
		if (centerRectangle.contains(targetCoord)) {
			targetCentered = true;
			targetInQ1 = targetInQ2 = targetInQ3 = targetInQ4 = false;
			highlightAllQuadrants();
		}
		else if (targetCoord.x >= centerPoint.x) {
			if (targetCoord.y <= centerPoint.y) {
				targetInQ1 = true;
				targetInQ2 = targetInQ3 = targetInQ4 = targetCentered = false;
				highlightQuadrant(1);
			}
			else if (targetCoord.y > centerPoint.y) {
				targetInQ4 = true;
				targetInQ1 = targetInQ2 = targetInQ3 = targetCentered = false;
				highlightQuadrant(4);
			}
		}
		else if (targetCoord.x < centerPoint.x) {
			if (targetCoord.y <= centerPoint.y) {
				targetInQ2 = true;
				targetInQ1 = targetInQ3 = targetInQ4 = targetCentered = false;
				highlightQuadrant(2);
			}
			else if (targetCoord.y > centerPoint.y) {
				targetInQ3 = true;
				targetInQ1 = targetInQ2 = targetInQ4 = targetCentered = false;
				highlightQuadrant(3);
			}
		}
	}
}

bool Target::init(KVConfig *cfg, int id, const cv::Rect &roi, const cv::Mat &curr_gray,
    double stamp, double min_dis_5frames, int min_pts, int max_feature_pts, double qualitylevel)
{
    first_rc_ = roi;
    outer_.x = 0, outer_.y = 0, outer_.width = curr_gray.cols, outer_.height = curr_gray.rows;
    stamp_ = stamp;
    cfg_ = cfg;
    id_ = id;
    min_dis_5frames_ = min_dis_5frames;
    min_pts_ = min_pts;

    stopped_dis_ = atof(cfg->get_value("pd_target_stopped_dis", "2.0"));

    //int max_features_pts = atoi(cfg->get_value("pd_max_features_pts", "300"));
    int max_features_pts = 200;

    PTS pts;
    //cv::goodFeaturesToTrack(curr_gray(roi), pts, max_feature_pts, qualitylevel, 1.5);
    hi_goodFeaturesToTrack(curr_gray(roi), pts, 200, qualitylevel, 1.5);

    if ((int)pts.size() < min_pts_) {
        return false;
    }

    l2g(pts, roi.tl());

    layers_.push_back(pts);

    brc_ = roi;
    last_rc_ = cv::boundingRect(pts);

    return true;
}