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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