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首先安装opencv：（在jupyter notebook里） 1 ! pip install opencv-python 接下来，从电脑的摄像头读取视频，识别视频内的人脸。 1 import cv2 2 3 face_cascade = cv2.CascadeClassifier('haarcas 阅读全文
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1 # import packages 2 import matplotlib.pyplot as plt 3 import numpy as np 4 import time 5 from mpl_toolkits.mplot3d import Axes3D 6 from matplotlib i 阅读全文
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1 import numpy as np 2 import matplotlib.pyplot as plt 3 4 filename = 'Unradiated_CG_Steel.txt' 5 f = np.genfromtxt(filename, delimiter=',') 6 X = f[: 阅读全文