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@ -24,6 +24,8 @@ class Heatmap: |
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self.view_img = False |
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self.shape = "circle" |
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self.names = None # Classes names |
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# Image information |
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self.imw = None |
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self.imh = None |
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@ -52,10 +54,13 @@ class Heatmap: |
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# Object Counting Information |
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self.in_counts = 0 |
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self.out_counts = 0 |
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self.counting_list = [] |
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self.count_ids = [] |
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self.class_wise_count = {} |
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self.count_txt_thickness = 0 |
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self.count_txt_color = (0, 0, 0) |
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self.count_color = (255, 255, 255) |
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self.count_txt_color = (255, 255, 255) |
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self.line_color = (255, 255, 255) |
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self.cls_txtdisplay_gap = 50 |
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self.fontsize = 0.6 |
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# Decay factor |
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self.decay_factor = 0.99 |
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@ -67,6 +72,7 @@ class Heatmap: |
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self, |
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imw, |
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imh, |
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classes_names=None, |
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colormap=cv2.COLORMAP_JET, |
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heatmap_alpha=0.5, |
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view_img=False, |
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@ -74,13 +80,15 @@ class Heatmap: |
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view_out_counts=True, |
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count_reg_pts=None, |
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count_txt_thickness=2, |
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count_txt_color=(0, 0, 0), |
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count_color=(255, 255, 255), |
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count_txt_color=(255, 255, 255), |
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fontsize=0.8, |
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line_color=(255, 255, 255), |
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count_reg_color=(255, 0, 255), |
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region_thickness=5, |
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line_dist_thresh=15, |
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decay_factor=0.99, |
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shape="circle", |
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cls_txtdisplay_gap=50, |
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): |
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""" |
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Configures the heatmap colormap, width, height and display parameters. |
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@ -89,6 +97,7 @@ class Heatmap: |
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colormap (cv2.COLORMAP): The colormap to be set. |
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imw (int): The width of the frame. |
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imh (int): The height of the frame. |
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classes_names (dict): Classes names |
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heatmap_alpha (float): alpha value for heatmap display |
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view_img (bool): Flag indicating frame display |
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view_in_counts (bool): Flag to control whether to display the incounts on video stream. |
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@ -96,13 +105,16 @@ class Heatmap: |
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count_reg_pts (list): Object counting region points |
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count_txt_thickness (int): Text thickness for object counting display |
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count_txt_color (RGB color): count text color value |
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count_color (RGB color): count text background color value |
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fontsize (float): Text display font size |
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line_color (RGB color): count highlighter line color |
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count_reg_color (RGB color): Color of object counting region |
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region_thickness (int): Object counting Region thickness |
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line_dist_thresh (int): Euclidean Distance threshold for line counter |
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decay_factor (float): value for removing heatmap area after object passed |
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shape (str): Heatmap shape, rect or circle shape supported |
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cls_txtdisplay_gap (int): Display gap between each class count |
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""" |
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self.names = classes_names |
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self.imw = imw |
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self.imh = imh |
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self.heatmap_alpha = heatmap_alpha |
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@ -116,29 +128,29 @@ class Heatmap: |
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if len(count_reg_pts) == 2: |
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print("Line Counter Initiated.") |
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self.count_reg_pts = count_reg_pts |
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self.counting_region = LineString(count_reg_pts) |
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elif len(count_reg_pts) == 4: |
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print("Region Counter Initiated.") |
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self.counting_region = LineString(self.count_reg_pts) |
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elif len(count_reg_pts) >= 3: |
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print("Polygon Counter Initiated.") |
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self.count_reg_pts = count_reg_pts |
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self.counting_region = Polygon(self.count_reg_pts) |
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else: |
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print("Region or line points Invalid, 2 or 4 points supported") |
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print("Invalid Region points provided, region_points must be 2 for lines or >= 3 for polygons.") |
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print("Using Line Counter Now") |
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self.counting_region = Polygon([(20, 400), (1260, 400)]) # dummy points |
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self.counting_region = LineString(self.count_reg_pts) |
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# Heatmap new frame |
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self.heatmap = np.zeros((int(self.imh), int(self.imw)), dtype=np.float32) |
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self.count_txt_thickness = count_txt_thickness |
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self.count_txt_color = count_txt_color |
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self.count_color = count_color |
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self.fontsize = fontsize |
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self.line_color = line_color |
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self.region_color = count_reg_color |
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self.region_thickness = region_thickness |
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self.decay_factor = decay_factor |
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self.line_dist_thresh = line_dist_thresh |
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self.shape = shape |
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self.cls_txtdisplay_gap = cls_txtdisplay_gap |
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# shape of heatmap, if not selected |
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if self.shape not in ["circle", "rect"]: |
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@ -183,6 +195,12 @@ class Heatmap: |
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) |
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for box, cls, track_id in zip(self.boxes, self.clss, self.track_ids): |
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# Store class info |
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if self.names[cls] not in self.class_wise_count: |
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if len(self.names[cls]) > 5: |
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self.names[cls] = self.names[cls][:5] |
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self.class_wise_count[self.names[cls]] = {"in": 0, "out": 0} |
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if self.shape == "circle": |
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center = (int((box[0] + box[2]) // 2), int((box[1] + box[3]) // 2)) |
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radius = min(int(box[2]) - int(box[0]), int(box[3]) - int(box[1])) // 2 |
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@ -203,23 +221,39 @@ class Heatmap: |
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if len(track_line) > 30: |
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track_line.pop(0) |
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# Count objects |
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if len(self.count_reg_pts) == 4: |
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if self.counting_region.contains(Point(track_line[-1])) and track_id not in self.counting_list: |
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self.counting_list.append(track_id) |
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if box[0] < self.counting_region.centroid.x: |
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self.out_counts += 1 |
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else: |
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prev_position = self.track_history[track_id][-2] if len(self.track_history[track_id]) > 1 else None |
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# Count objects in any polygon |
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if len(self.count_reg_pts) >= 3: |
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is_inside = self.counting_region.contains(Point(track_line[-1])) |
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if prev_position is not None and is_inside and track_id not in self.count_ids: |
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self.count_ids.append(track_id) |
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if (box[0] - prev_position[0]) * (self.counting_region.centroid.x - prev_position[0]) > 0: |
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self.in_counts += 1 |
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self.class_wise_count[self.names[cls]]["in"] += 1 |
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else: |
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self.out_counts += 1 |
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self.class_wise_count[self.names[cls]]["out"] += 1 |
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# Count objects using line |
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elif len(self.count_reg_pts) == 2: |
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distance = Point(track_line[-1]).distance(self.counting_region) |
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if distance < self.line_dist_thresh and track_id not in self.counting_list: |
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self.counting_list.append(track_id) |
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if box[0] < self.counting_region.centroid.x: |
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self.out_counts += 1 |
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else: |
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self.in_counts += 1 |
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is_inside = (box[0] - prev_position[0]) * (self.counting_region.centroid.x - prev_position[0]) > 0 |
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if prev_position is not None and is_inside and track_id not in self.count_ids: |
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distance = Point(track_line[-1]).distance(self.counting_region) |
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if distance < self.line_dist_thresh and track_id not in self.count_ids: |
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self.count_ids.append(track_id) |
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if (box[0] - prev_position[0]) * (self.counting_region.centroid.x - prev_position[0]) > 0: |
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self.in_counts += 1 |
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self.class_wise_count[self.names[cls]]["in"] += 1 |
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else: |
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self.out_counts += 1 |
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self.class_wise_count[self.names[cls]]["out"] += 1 |
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else: |
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for box, cls in zip(self.boxes, self.clss): |
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if self.shape == "circle": |
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@ -240,26 +274,30 @@ class Heatmap: |
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heatmap_normalized = cv2.normalize(self.heatmap, None, 0, 255, cv2.NORM_MINMAX) |
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heatmap_colored = cv2.applyColorMap(heatmap_normalized.astype(np.uint8), self.colormap) |
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incount_label = f"In Count : {self.in_counts}" |
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outcount_label = f"OutCount : {self.out_counts}" |
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# Display counts based on user choice |
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counts_label = None |
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if not self.view_in_counts and not self.view_out_counts: |
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counts_label = None |
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elif not self.view_in_counts: |
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counts_label = outcount_label |
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elif not self.view_out_counts: |
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counts_label = incount_label |
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else: |
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counts_label = f"{incount_label} {outcount_label}" |
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label = "Ultralytics Analytics \t" |
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for key, value in self.class_wise_count.items(): |
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if value["in"] != 0 or value["out"] != 0: |
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if not self.view_in_counts and not self.view_out_counts: |
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label = None |
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elif not self.view_in_counts: |
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label += f"{str.capitalize(key)}: IN {value['in']} \t" |
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elif not self.view_out_counts: |
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label += f"{str.capitalize(key)}: OUT {value['out']} \t" |
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else: |
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label += f"{str.capitalize(key)}: IN {value['in']} OUT {value['out']} \t" |
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label = label.rstrip() |
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label = label.split("\t") |
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if self.count_reg_pts is not None and counts_label is not None: |
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self.annotator.count_labels( |
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counts=counts_label, |
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count_txt_size=self.count_txt_thickness, |
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if self.count_reg_pts is not None and label is not None: |
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self.annotator.display_counts( |
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counts=label, |
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tf=self.count_txt_thickness, |
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fontScale=self.fontsize, |
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txt_color=self.count_txt_color, |
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color=self.count_color, |
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line_color=self.line_color, |
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classwise_txtgap=self.cls_txtdisplay_gap, |
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) |
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self.im0 = cv2.addWeighted(self.im0, 1 - self.heatmap_alpha, heatmap_colored, self.heatmap_alpha, 0) |
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Muhammad Rizwan Munawar
8 months ago
committed by
GitHub