python實現USB攝像頭檢測，輸出圖像，黑白濾鏡

很少說，上代碼python import cv2 import numpy as np cap = cv2.VideoCapture(0)# set blue thresh lower_blue=np.array([78,43,46]) upper_blue=np.array([110,255,255]) while(1): # get a frame and show ret

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