VideoCapture
from xgoedu import XGOEDU import time #实例化edu XGO_edu = XGOEDU() XGO_edu.lcd_text(50,50,'hello',color=(255,0,0),fontsize=50) time.sleep(2) import cv2 import numpy as np # 打开摄像头 cap = cv2.VideoCapture(0) cap.set(3, 320) cap.set(4, 240) while True: # 读取摄像头中的图像 ret, frame = cap.read() # 转换颜色空间为HSV hsv = cv2.cvtColor(frame, cv2.COLOR_BGR2HSV) # 定义蓝色的范围 lower_blue = np.array([110, 50, 50]) upper_blue = np.array([130, 255, 255]) # 根据阈值获取蓝色区域 mask = cv2.inRange(hsv, lower_blue, upper_blue) # 对原图像和掩模进行位运算 res = cv2.bitwise_and(frame, frame, mask=mask) # 显示图像 cv2.imshow('frame', frame) cv2.imshow('mask', mask) cv2.imshow('res', res) # 按下q键退出循环 if cv2.waitKey(1) & 0xFF == ord('q'): break # 释放资源 cap.release() cv2.destroyAllWindows()