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Create fps_test.py #5

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31 changes: 31 additions & 0 deletions fps_test.py
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Original file line number Diff line number Diff line change
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import cv2
import time

cap = cv2.VideoCapture(0)
# 设置分辨率，可自行修改
cap.set(cv2.CAP_PROP_FRAME_WIDTH, 640)
cap.set(cv2.CAP_PROP_FRAME_HEIGHT, 480)

start_time = time.time()
frame_count = 0

while True:
ret, frame = cap.read()
if not ret:
print("读取摄像头失败")
break

frame_count += 1
curr_time = time.time()
if curr_time - start_time >= 2:
fps = frame_count / (curr_time - start_time)
print(f"当前帧率：{fps:.2f} FPS")
frame_count = 0
start_time = curr_time

cv2.imshow("USB Camera", frame)
if cv2.waitKey(1) & 0xFF == ord('q'):
break

cap.release()
cv2.destroyAllWindows()