Python OpenCV | cv2.imshow() method
OpenCV-Python is a library of Python bindings designed to solve computer vision problems. cv2.imshow() method is used to display an image in a window. The window automatically fits to the image size.
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.
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Image used for all the below examples:
Example #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 modeimage = cv2.imread(path) # Window name in which image is displayedwindow_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() |
Output:
Example #2:
# Python program to explain cv2.imshow() method # importing cv2import cv2 # pathpath = r'C:\Users\Rajnish\Desktop\geeksforgeeks.png' # Reading an image in grayscale modeimage = cv2.imread(path, 0) # Window name in which image is displayedwindow_name = 'image' # Using cv2.imshow() method# Displaying the imagecv2.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 windowscv2.destroyAllWindows() |
Output:
