64 lines
1.3 KiB
Markdown
64 lines
1.3 KiB
Markdown
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---
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title: "🎬 Счётчик FPS в OpenCV"
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date: 2023-10-03T21:41:14+03:00
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draft: false
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tags: [cv, tips, python]
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---
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На примере работы с YOLOv8 показываю получение FPS.
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Необходим модуль `time` и две переменные: `prev_frame_time`, `new_frame_time`.
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```python
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import time
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import cv2
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from ultralytics import YOLO
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model = YOLO('best_s_640.pt')
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video_path = 'run.mp4'
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cap = cv2.VideoCapture(video_path)
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prev_frame_time = 0
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new_frame_time = 0
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while cap.isOpened():
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success, frame = cap.read()
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new_frame_time = time.time()
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if success:
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results = model(frame)
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# Обработка кадра
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# ...
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fps = str(1 / (new_frame_time - prev_frame_time))
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# Вывод FPS на кадр
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cv2.putText(
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annotated_frame,
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fps,
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(7, 70),
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cv2.FONT_HERSHEY_SIMPLEX,
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3,
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(100, 255, 0),
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3,
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cv2.LINE_AA,
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)
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prev_frame_time = new_frame_time
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cv2.imshow('OpenCV', complete_frame)
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if cv2.waitKey(1) & 0xFF == ord('q'):
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break
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else:
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break
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print('FPS: {}'.format(fps))
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cap.release()
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cv2.destroyAllWindows()
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```
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