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Update app.py
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app.py
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@@ -3,39 +3,29 @@ import gradio as gr
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from ultralytics import YOLO
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# ── Config ─────────────────────────────────────────────
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MODEL_PATH = "yolov8n.pt"
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CONF_THRES
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LINE_RATIO
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# ───────────────────────────────────────────────────────
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# modelo — se carga una sola vez
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model = YOLO(MODEL_PATH)
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# estado global del contador
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memory, in_count, out_count = {}, 0, 0
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def count_people(frame_rgb):
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"""
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▸ Recibe un frame RGB (numpy) desde la webcam.
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▸ Devuelve el frame anotado (RGB) y el texto del contador.
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"""
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global memory, in_count, out_count
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if frame_rgb is None:
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return None, ""
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# ── convertir RGB ➜ BGR (OpenCV/YOLO) ──────────────
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frame_bgr = cv2.cvtColor(frame_rgb, cv2.COLOR_RGB2BGR)
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h, w
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line_y
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# ── detección + tracking (ByteTrack interno) ───────
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results = model.track(frame_bgr,
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classes=[0],
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persist=True,
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verbose=False)
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annotated = frame_bgr.copy()
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cv2.line(annotated, (0, line_y), (w, line_y), (0, 255, 255), 2)
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@@ -43,14 +33,14 @@ def count_people(frame_rgb):
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if results:
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for box in results[0].boxes:
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x1, y1, x2, y2 = map(int, box.xyxy[0])
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cx, cy
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tid
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prev_cy = memory.get(tid, cy)
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if prev_cy < line_y <= cy:
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in_count += 1
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elif prev_cy > line_y >= cy:
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out_count += 1
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memory[tid] = cy
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cv2.rectangle(annotated, (x1, y1), (x2, y2), (0, 255, 0), 1)
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@@ -61,34 +51,29 @@ def count_people(frame_rgb):
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total = in_count - out_count
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label = f"In: {in_count} | Out: {out_count} | Ocupación: {total}"
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# ── devolver en RGB para que Gradio lo muestre bien ─
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annotated_rgb = cv2.cvtColor(annotated, cv2.COLOR_BGR2RGB)
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return annotated_rgb, label
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def reset_counts():
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"""Resetea contador y memoria."""
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global memory, in_count, out_count
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memory, in_count, out_count = {}, 0, 0
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return None, ""
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# ── Interfaz Gradio ────────────────────────────────────
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with gr.Blocks(title="Contador de personas (entrada única)") as demo:
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gr.Markdown("# Contador de personas (entrada única)")
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with gr.Row():
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cam
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out_img
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out_lbl = gr.Text(label="Contador")
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btn_clear = gr.Button("Limpiar")
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btn_clear.click(fn=reset_counts, outputs=[out_img, out_lbl])
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#
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demo.queue(
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demo.launch()
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from ultralytics import YOLO
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# ── Config ─────────────────────────────────────────────
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MODEL_PATH = "yolov8n.pt"
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CONF_THRES = 0.30
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LINE_RATIO = 0.50
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# ───────────────────────────────────────────────────────
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model = YOLO(MODEL_PATH)
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memory, in_count, out_count = {}, 0, 0
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def count_people(frame_rgb):
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global memory, in_count, out_count
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if frame_rgb is None:
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return None, ""
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frame_bgr = cv2.cvtColor(frame_rgb, cv2.COLOR_RGB2BGR)
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h, w = frame_bgr.shape[:2]
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line_y = int(h * LINE_RATIO)
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results = model.track(frame_bgr,
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classes=[0], conf=CONF_THRES,
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persist=True, verbose=False)
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annotated = frame_bgr.copy()
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cv2.line(annotated, (0, line_y), (w, line_y), (0, 255, 255), 2)
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if results:
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for box in results[0].boxes:
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x1, y1, x2, y2 = map(int, box.xyxy[0])
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cx, cy = (x1 + x2) // 2, (y1 + y2) // 2
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tid = int(box.id[0]) if box.id is not None else -1
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prev_cy = memory.get(tid, cy)
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if prev_cy < line_y <= cy:
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in_count += 1 # entró
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elif prev_cy > line_y >= cy:
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out_count += 1 # salió
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memory[tid] = cy
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cv2.rectangle(annotated, (x1, y1), (x2, y2), (0, 255, 0), 1)
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total = in_count - out_count
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label = f"In: {in_count} | Out: {out_count} | Ocupación: {total}"
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annotated_rgb = cv2.cvtColor(annotated, cv2.COLOR_BGR2RGB)
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return annotated_rgb, label
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def reset_counts():
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global memory, in_count, out_count
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memory, in_count, out_count = {}, 0, 0
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return None, ""
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with gr.Blocks(title="Contador de personas (entrada única)") as demo:
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gr.Markdown("# Contador de personas (entrada única)")
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with gr.Row():
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cam = gr.Image(sources=["webcam"], streaming=True, label="frame")
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out_img = gr.Image(label="Video")
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out_lbl = gr.Text(label="Contador")
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btn_clear = gr.Button("Limpiar")
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cam.stream(count_people, inputs=[cam], outputs=[out_img, out_lbl])
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btn_clear.click(reset_counts, outputs=[out_img, out_lbl])
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# límite de cola (para que no se llene si baja el FPS)
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demo.queue(max_size=60)
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demo.launch()
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