How to Resize Image in Python using OpenCV (CV2)

You can resize an image in Python using OpenCV by following the given steps. I highly recommend you get the “Computer Vision: Models, Learning, and Inference Book” to learn Computer Vision.

Step 1

Open the Spyder IDE (integrated development environment).

Step 2

Import the OpenCV library. If OpenCV is not installed in your system then first install it using This Method.

import cv2 
#cv2 is used for OpenCV library

Step 3

Now read the image from the location. In my case “F:\\AiHints” is the location and “top30.png” is the name of the image. Change it according to your image location and name.

image = cv2.imread("F:\\AiHints\\top30.png")
#imread is use to read an image from a location

Step 4

Now resize the image using this code and change the “width” and “height” according to your requirement.

image = cv2.resize(image,(600,300)) #width, height

Step 5

This code will show the image and “original” is only a new name of an image that will show in a window.

#imshow command is use to show an image

Step 6

waitKey() open the image for a specific time in milliseconds until you press any key. “destroyAllWindows()” will destroy all the windows that we created.


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