15 Mar Resize an image with OpenCV

Resizing an image with OpenCV is quite straightforward. You can use the cv2.resize() function to achieve this. The cv2.resize(image, new_dimensions) resizes the image.

Here’s an example:

The image is resized to 600×600 dimensions now. Initially, the image size was 1280×1280.

The following is the output:

Explanation:

The above Python script uses the OpenCV library to load, resize, and display an image. The code starts by importing the OpenCV library.

• It then reads an image from the specified file path and loads it into a variable named image.
• The cv2.imread() function is used for this purpose, with 1 indicating that the image should be loaded in color.
• The script then defines new dimensions for resizing the image, setting both the width and height to 600 pixels. Using the cv2.resize() function, the image is resized to the specified dimensions and stored in a variable named resized_image.
• The new dimensions of the resized image are printed to the console using print().
• Finally, the script displays the resized image in a window titled “Image Resized:” with the cv2.imshow() function.
• To keep the image window open, the script includes a cv2.waitKey(0) function, which waits indefinitely for a key press.
• Once a key is pressed, the script closes all OpenCV windows using the cv2.destroyAllWindows() function. This process allows users to view the resized image and close the display window at their convenience.

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