Python OpenCV | cv2.imshow() 方法

OpenCV-Python是一个Python绑定库，旨在解决计算机视觉问题。 cv2.imshow() 方法用于在窗口中显示图像。窗口自动适应图像大小。

Syntax: cv2.imshow(window_name, image)
Parameters: 
window_name: A string representing the name of the window in which image to be displayed. 
image: It is the image that is to be displayed.
Return Value: It doesn’t returns anything. 
 

用于以下所有示例的图像：

示例 #1：

# Python program to explain cv2.imshow() method 
  
# importing cv2 
import cv2 
  
# path 
path = r'C:\Users\Rajnish\Desktop\geeksforgeeks.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：

示例 #2：

# Python program to explain cv2.imshow() method
  
# importing cv2
import cv2
  
# path
path = r'C:\Users\Rajnish\Desktop\geeksforgeeks.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：