Resizing several images

Forum|Forum|3 years ago
February 21, 2023
3 replies
1421 views

Hello! Do someone know if it is possible to resize multiple images with a script even through they have different sizes?

Actions and scripting

Correct answer D Fosse

If the goal is a standard size, File > Automate > Fit Image is what you want for this. It can be used in actions, a script is not necessary.

It will work on both portrait and landscape, resizing the longest side. It can either enlarge if applicable, or not.

A

Ayla_6644

Participant

1. Python Solution (PIL - Pillow)

You can use the Pillow (PIL) library to resize multiple images in a folder, regardless of their original sizes.

Example: Resize all images to 500x500 pixels

python

from PIL import Image import os input_folder = "images/" # Folder containing images output_folder = "resized_images/" # Output folder # Create output directory if it doesn't exist os.makedirs(output_folder, exist_ok=True) # Loop through all images in the input folder for filename in os.listdir(input_folder): if filename.endswith((".jpg", ".jpeg", ".png", ".bmp", ".gif")): img_path = os.path.join(input_folder, filename) img = Image.open(img_path) # Resize the image while maintaining aspect ratio img_resized = img.resize((500, 500), Image.ANTIALIAS) # Save the resized image img_resized.save(os.path.join(output_folder, filename)) print("Batch image resizing completed!")

✔ This script resizes all images in the images/ folder and saves them to resized_images/.

2. Python Solution (OpenCV)

If you prefer OpenCV, use the following script:

python

import cv2 import os input_folder = "images/" output_folder = "resized_images/" os.makedirs(output_folder, exist_ok=True) for filename in os.listdir(input_folder): if filename.endswith((".jpg", ".jpeg", ".png")): img_path = os.path.join(input_folder, filename) img = cv2.imread(img_path) # Resize image while keeping aspect ratio img_resized = cv2.resize(img, (500, 500)) cv2.imwrite(os.path.join(output_folder, filename), img_resized) print("Images resized successfully!")