Python OpenCV | cv2.imshow()方法

原文:https://www.geesforgeks.org/python-opencv-cv2-im show-method/

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

语法: cv2.imshow(window_name，image) 参数: window_name: 表示要显示图像的窗口名称的字符串。 图像:是要显示的图像。 返回值:不返回任何东西。

图像用于以下所有示例:

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:

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:

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