cctv7乡土全集,防御狙击手,刚毅不屈造句
import numpy as np from scipy.misc import imread, imsave, imresize import matplotlib.pyplot as plt img = imread('cat.jpg') print(img.dtype, img.shape) # uint8 (500, 500, 3) img_tinted = img * [1, 0.1, 0.5] # rgb img_tinted = imresize(img_tinted, (300, 600)) imsave('cat_tinted.jpg', img_tinted) plt.subplot(1, 2, 1) plt.imshow(img) plt.subplot(1, 2, 2) plt.imshow(img_tinted) plt.show()
x = np.arange(0, 2 * np.pi, 0.1) y_sin = np.sin(x) y_cos = np.cos(x) plt.subplot(2, 2, 1) plt.plot(x, y_sin) plt.plot(x, y_cos) plt.xlabel('x axis label') plt.ylabel('y axis label') plt.title('sine and cosine') plt.legend(['sine', 'cosine']) plt.subplot(2, 2, 2) plt.plot(x, y_sin) plt.title('sine') plt.legend(['this is sine']) # img = imread('cat.jpg') plt.subplot(2, 2, 3) plt.imshow(img) plt.subplot(2, 2, 4) plt.imshow(np.uint8(img_tinted)) plt.show()
from scipy.spatial.distance import pdist, squareform x= np.array([[0, 1], [1, 0], [2, 0]]) d= squareform(pdist(x, 'euclidean')) print(d)
[[0. 1.41421356 2.23606798]
[1.41421356 0. 1. ]
[2.23606798 1. 0. ]]
如对本文有疑问,请在下面进行留言讨论,广大热心网友会与你互动!! 点击进行留言回复
新手学习Python2和Python3中print不同的用法
Python基于os.environ从windows获取环境变量
网友评论