我试着运行网站上的代码。当我运行时,它发现matplotlib模块已经没有光谱属性。我在论坛上看到另一个属性被省略了。我如何替换它?我试过c.get_cmp,cm.nipy_sepctral,plt.cm.spectral。但这仍然是一个错误。这是所有的代码:
import plotly.plotly as py
import plotly.graph_objs as go
from plotly import tools
from __future__ import print_function
from sklearn.datasets import make_blobs
from s
我需要访问预定义的颜色映射"jet“。我找到了一个访问地图"vidiris“的例子。 import numpy as np
import matplotlib.pyplot as plt
from matplotlib import cm
from matplotlib.colors import ListedColormap, LinearSegmentedColormap
viridis = cm.get_cmap('viridis', 12)
print('viridis.colors', viridis.colors) 这给了我地图的前
我正在尝试从枕头图像中提取hue频道。下面是一个例子:
In [40]: from PIL import Image
In [41]: pillow_img = Image.open('lekha.jpg')
# convert to HSV
In [42]: hsv_img = pillow_img.convert('HSV')
# cast it as NumPy array
In [43]: arr_hsv = np.asarray(hsv_img)
现在,我如何才能从数组hue中提取arr_hsv通道?
如果是RGB图像,提取red通道将转
所以在Angular Material 2中,我设置了我的主题
$store-primary: mat-palette($mat-storecast);
$store-accent: mat-palette($mat-pink, A200, A100, A400);
// The warn palette is optional (defaults to red).
$store-warn: mat-palette($mat-red);
// Create the theme object (a Sass map containing all of the palettes).
$
我使用的是Ubuntu16.04。我想安装一个与ROS相关的"apt-get安装“包,但是它不起作用。终端机上写着如下。
$ sudo apt-get install ros-kinetic-libuvc
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these:
The following packages have
npm install node-sass
npm WARN deprecated har-validator@5.1.5: this library is no longer supported
npm WARN deprecated uuid@3.4.0: Please upgrade to version 7 or higher. Older versions may use Math.random() in certain circumstances, which is known to be problematic. See https://v8.dev/blog/math
npm ERR! code 1
npm ERR! path D:\Portals\SALAM_DMS\finger\node-java\node_modules\java
npm ERR! command failed
npm ERR! command C:\Windows\system32\cmd.exe /d /s /c node-gyp rebuild
npm ERR! gyp info it worked if it ends with ok
npm ERR! gyp info using node-gyp@8.3.0
npm ERR! gyp info using node@16.1