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Python OpenCV | cv2.imshow()方法介绍

OpenCV的Python

是旨在解决计算机视觉问题的Python绑定库。 cv2.imshow()方法用于在窗口中显示图像。窗口自动适合图像尺寸。

语法:cv2.imshow(window_name, image)参数:window_name:字符串, 表示要在其中显示图像的窗口的名称。图像:这是要显示的图像。返回值:不返回任何内容。

用于以下所有示例的图像:

Python OpenCV | cv2.imshow()方法1

示例1:

# Python program to explain cv2.imshow() method 
  
# importing cv2 
import cv2 
  
# path 
path = r 'C:\Users\Rajnish\Desktop\srcmini.png'
  
# Reading an image in default mode
image = cv2.imread(path)
  
# Window name in which image is displayed
window_name = 'image'
  
# Using cv2.imshow() method 
# Displaying the image 
cv2.imshow(window_name, image)
  
#waits for user to press any key 
#(this is necessary to avoid Python kernel form crashing)
cv2.waitKey( 0 ) 
  
#closing all open windows 
cv2.destroyAllWindows()

输出如下:

Python OpenCV | cv2.imshow()方法2

示例2:

# Python program to explain cv2.imshow() method
  
# importing cv2
import cv2
  
# path
path = r 'C:\Users\Rajnish\Desktop\srcmini.png'
  
# Reading an image in grayscale mode
image = cv2.imread(path, 0 )
  
# Window name in which image is displayed
window_name = 'image'
  
# Using cv2.imshow() method
# Displaying the image
cv2.imshow(window_name, image)
  
# waits for user to press any key
# (this is necessary to avoid Python kernel form crashing)
cv2.waitKey( 0 )
  
# closing all open windows
cv2.destroyAllWindows()

输出如下:

Python OpenCV | cv2.imshow()方法3

首先, 你的面试准备可通过以下方式增强你的数据结构概念:Python DS课程。


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