python用opencv库实现的摄像头调用

代码如下import cv2def show(img):img = cv2.resize(img, (460, 640)) # 改变图像尺寸，不要太大QAQWidth = img.shape[1]Height = img.shape[0]cv2.namedWindow('picShow', 0)# 窗口名字cv2.resizeWindow('picShow', (Width, Height))#

1.第一种方法import matplotlib.pyplot as pltimport numpy as nppic = np.arange(2000).reshape((100,20))plt.imshow(pic)plt.savefig('test.png', bbox_inches='tight')2.第二种方法import matplotlib.pyplot as pltimport n

【代码】anaconda创建环境、下载包出现：DEBUG:urllib3.connectionpool:Starting new HTTPS connection (1)