opencv is use BGR color
matplotlib is use RGB color
顯示圖片
opencv
matplotlib


學習

音樂藝文

創作

<ul>
 <li class="draft-block draft--li">opencv is use BGR color</li>
 <li class="draft-block draft--li">matplotlib is use RGB color</li>
</ul>
<div class="draft-block draft--p left">顯示圖片</div>
<ul>
 <li class="draft-block draft--li">opencv</li>
</ul>
<pre class="public-DraftStyleDefault-pre draft-block"><pre class="draft--code-block">from PIL import Image import cv2 import numpy as npimg = Image.open('Image.jpg') img = np.array(img) cv2.imshow('img', img) cv2.waitKey()</pre></pre>
<ul>
 <li class="draft-block draft--li">matplotlib</li>
</ul>
<pre class="public-DraftStyleDefault-pre draft-block"><pre class="draft--code-block">from PIL import Image import matplotlib.pyplot as plt import numpy as npimg = Image.open('Image.jpg') img = np.array(img) plt.imshow(img) plt.show()</pre></pre>

<ul>
 <li>opencv is use BGR color</li>
 <li>matplotlib is use RGB color</li>
</ul>
顯示圖片
<ul>
 <li>opencv</li>
</ul>
<pre><code>from PIL import Image 
import cv2 
import numpy as npimg = Image.open('Image.jpg') 
img = np.array(img) 
cv2.imshow('img', img) 
cv2.waitKey()</code></pre>
<ul>
 <li>matplotlib</li>
</ul>
<pre><code>from PIL import Image 
import matplotlib.pyplot as plt 
import numpy as npimg = Image.open('Image.jpg') 
img = np.array(img) 
plt.imshow(img) 
plt.show()</code></pre>

from PIL import Image
import cv2
import numpy as npimg = Image.open('Image.jpg')
img = np.array(img)
cv2.imshow('img', img)
cv2.waitKey()

from PIL import Image
import matplotlib.pyplot as plt
import numpy as npimg = Image.open('Image.jpg')
img = np.array(img)
plt.imshow(img)
plt.show()

opencv and matplotlib different

tkinter 所有元件:
基本視窗:
1.BitmapImage:
2.Button:
3.Canvas:
4.Checkbutton:
5.Entry:
6.Frame:
7.Label:
8.LabelFrame:
9.Listbox:
10.Menu:
11.Menubutton:


Python tkinter GUI 基本用法

Java script 中有其中兩種宣告分別是 var 跟 let
var
結果:
let
結果:
** let 是一種區塊的變數宣告像是 if else while for 即跳出區塊時就無法取得資料
