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Update app.py
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app.py
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@@ -63,144 +63,89 @@ class DatasetCollectionApp:
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print(f"Database has {len(self.db.get_all_dogs())} dogs")
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def create_visualization_video(self, video_path: str, sample_rate: int) -> str:
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"""Create visualization video with boxes
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try:
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cap = cv2.VideoCapture(video_path)
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if not cap.isOpened():
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print("ERROR: Cannot open input video")
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return None
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-
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fps = cap.get(cv2.CAP_PROP_FPS) or 30
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width = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH))
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height = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))
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output_path = f"visualization_{datetime.now().strftime('%Y%m%d_%H%M%S')}.mp4"
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# Try
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codecs = ['mp4v', 'XVID', 'MJPG']
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out = None
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for codec in codecs:
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fourcc = cv2.VideoWriter_fourcc(*codec)
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out = cv2.VideoWriter(output_path, fourcc, fps, (width, height))
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if out.isOpened():
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print(f"Using codec: {codec}")
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break
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else:
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out.release()
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out = None
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if out is None or not out.isOpened():
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print("ERROR: Could not initialize VideoWriter with any codec")
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cap.release()
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return None
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#
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viz_tracker = DeepSORTTracker(
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max_iou_distance=0.5,
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max_age=90,
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n_init=1,
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use_appearance=
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)
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# Create separate ReID instance for visualization
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viz_reid = SimplifiedReID(device=self.device)
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viz_reid.set_threshold(self.reid.threshold)
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viz_reid.set_video_source(video_path)
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# Color mapping for temp_ids
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track_colors = {}
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frame_num = 0
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print("\nCreating visualization video
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while cap.isOpened():
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ret, frame = cap.read()
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if not ret:
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break
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-
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if frame_num % sample_rate == 0:
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# Detect dogs
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detections = self.detector.detect(frame)
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# Track dogs
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tracks = viz_tracker.update(detections)
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# Match with ReID to get temp_ids
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for track in tracks:
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if temp_id == 0:
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continue
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# Assign color based on temp_id
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if temp_id not in track_colors:
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track_colors[temp_id] = (
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np.random.randint(50, 255),
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np.random.randint(50, 255),
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np.random.randint(50, 255)
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)
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x1, y1, x2, y2 = map(int, track.bbox)
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# Draw bold box
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cv2.rectangle(frame, (x1, y1), (x2, y2), color, 6)
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# Add ID label
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label = f"#{temp_id}"
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font = cv2.FONT_HERSHEY_SIMPLEX
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font_scale = 1.5
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font_thickness = 3
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# Get text size
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(text_width, text_height), baseline = cv2.getTextSize(
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label, font, font_scale, font_thickness
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)
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# Draw filled rectangle background for text
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cv2.rectangle(
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frame,
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(x1, y1 - text_height - 15),
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(x1 + text_width + 15, y1),
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color,
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-1
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)
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# Draw white text
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cv2.putText(
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frame,
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label,
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(x1 + 7, y1 - 7),
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font,
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font_scale,
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(255, 255, 255),
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font_thickness,
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cv2.LINE_AA
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)
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out.write(frame)
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frame_num += 1
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if frame_num % 30 == 0:
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print(f"Visualization progress: {frame_num} frames")
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cap.release()
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out.release()
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# Verify file
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if os.path.exists(output_path) and os.path.getsize(output_path) > 1000:
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print(f"Visualization video saved: {output_path}")
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print(f"Gallery temp_ids shown: {sorted(track_colors.keys())}")
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return output_path
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else:
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print("ERROR: Video file not created or is empty")
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return None
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except Exception as e:
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print(f"Visualization video error: {e}")
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import traceback
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print(f"Database has {len(self.db.get_all_dogs())} dogs")
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def create_visualization_video(self, video_path: str, sample_rate: int) -> str:
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"""Create visualization video with bold boxes from tracking.py only (no ReID, no labels)"""
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try:
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cap = cv2.VideoCapture(video_path)
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if not cap.isOpened():
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print("ERROR: Cannot open input video")
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return None
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fps = cap.get(cv2.CAP_PROP_FPS) or 30
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width = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH))
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height = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))
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output_path = f"visualization_{datetime.now().strftime('%Y%m%d_%H%M%S')}.mp4"
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# Try codecs
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codecs = ['mp4v', 'XVID', 'MJPG']
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out = None
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for codec in codecs:
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fourcc = cv2.VideoWriter_fourcc(*codec)
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out = cv2.VideoWriter(output_path, fourcc, fps, (width, height))
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if out.isOpened():
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print(f"Using codec: {codec}")
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break
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else:
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out.release()
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out = None
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if out is None or not out.isOpened():
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print("ERROR: Could not initialize VideoWriter with any codec")
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cap.release()
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return None
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# Tracker only (no ReID)
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viz_tracker = DeepSORTTracker(
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max_iou_distance=0.5,
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max_age=90,
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n_init=1,
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use_appearance=False
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)
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track_colors = {}
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frame_num = 0
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print("\nCreating visualization video (tracking IDs only)...")
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while cap.isOpened():
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ret, frame = cap.read()
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if not ret:
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break
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if frame_num % sample_rate == 0:
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detections = self.detector.detect(frame)
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tracks = viz_tracker.update(detections)
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for track in tracks:
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tid = track.track_id
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if tid not in track_colors:
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track_colors[tid] = (
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np.random.randint(50, 255),
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np.random.randint(50, 255),
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np.random.randint(50, 255)
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)
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color = track_colors[tid]
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x1, y1, x2, y2 = map(int, track.bbox)
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# Bold box only
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cv2.rectangle(frame, (x1, y1), (x2, y2), color, 6)
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out.write(frame)
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frame_num += 1
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if frame_num % 30 == 0:
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print(f"Visualization progress: {frame_num} frames")
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cap.release()
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out.release()
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if os.path.exists(output_path) and os.path.getsize(output_path) > 1000:
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print(f"Visualization video saved: {output_path}")
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return output_path
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else:
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print("ERROR: Video file not created or is empty")
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return None
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except Exception as e:
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print(f"Visualization video error: {e}")
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import traceback
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