49 lines
1.2 KiB
Python
49 lines
1.2 KiB
Python
import cv2
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import numpy as np
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# 用于存储点击的坐标
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click_coordinates = []
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# 鼠标点击事件回调函数
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def click_event(event, x, y, flags, param):
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if event == cv2.EVENT_LBUTTONDOWN:
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# 将点击的坐标加入到列表
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click_coordinates.append((x, y))
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print(f"({x}, {y})")
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cap = cv2.VideoCapture(0, cv2.CAP_DSHOW)
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if not cap.isOpened():
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print("Error: Could not open video stream.")
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exit()
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cv2.namedWindow("frame")
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cv2.setMouseCallback("frame", click_event)
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while(True):
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ret, frame = cap.read()
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if not ret:
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print("Error: Failed to capture frame.")
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break
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# 遍历所有保存的坐标，绘制坐标
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for coord in click_coordinates:
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x, y = coord
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font = cv2.FONT_HERSHEY_SIMPLEX
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text = f"({x}, {y})"
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# 在点击位置绘制坐标
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cv2.putText(frame, text, (x + 10, y + 10), font, 0.5, (255, 0, 0), 2)
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# 在点击位置画一个小圆圈作为标记
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cv2.circle(frame, (x, y), 5, (0, 0, 255), -1)
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# 显示视频帧
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cv2.imshow('frame', frame)
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# 按 'q' 键退出
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if cv2.waitKey(1) & 0xFF == ord('q'):
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break
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cap.release()
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cv2.destroyAllWindows()
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