cmap 的选择: binary seismic Reds 多类别数据的 scatter(逐点散列),在 matplotlib 中的实现关键在于,color关键字的定义: def plot_scatter(values, cls): # Create a color-map with a different color for each class. import matplotlib.cm as cm cmap = cm.rainbow(np.linspace(0.0, 1.0, num_cl
#!/usr/bin/env python #coding=GBK from mpl_toolkits.mplot3d import Axes3D from matplotlib import cm from matplotlib.ticker import LinearLocator, FormatStrFormatter import matplotlib.pyplot as plt import numpy as np fig = plt.figure() ax = fig.gca(pro
Color image loaded by OpenCV is in BGR mode.But Matplotlib displays in RGB mode.So color images will not be displayed correctly in Matplotlib if image is read with OpenCV.Please see the exercises for more details.(引自文档) import numpy as np import cv2
之前在今日头条中更新了几期的Matplotlib教学短视频,在圈内受到了广泛好评,现应大家要求,将视频中的代码贴出来,方便大家学习. 为了使实例图像显得不单调,我们先将绘图代码贴上来,此处代码对Figure背景设置无影响. 默认背景下图像及代码 import numpy as np import matplotlib.pyplot as plt import matplotlib.cm as cm import matplotlib.image as img from matplotlib.fo
本文记录matlibplot常用基本操作,都是基本功能,不涉及复杂联合操作,其中各用法详细用法可参考官网: 1. 基本画图操作 ##mofan_matplotlib.pyplot import matplotlib.pyplot as plt import numpy as np x = np.linspace(1,50) y = 2*x + 1 #draw the lines #plt.plot(x,y) #show to draw the figure :must call at the l