Created
February 26, 2024 05:59
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Tiny Python script that resizes the images in all subfolders to a target size and converts it to PNG format.
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| # This script is used for resizing and converting images in a specified directory. It traverses through the directory, | |
| # and for each image file it finds (with extensions .png, .jpg, .jpeg, .bmp, .gif, .tiff, .tif), it resizes the image | |
| # to a target size (default is 1024x1024) and converts it to PNG format. | |
| from PIL import Image | |
| import os | |
| def resize_and_convert_images(root_dir, target_size=(1024, 1024)): | |
| for root, dirs, files in os.walk(root_dir): | |
| for file in files: | |
| if file.lower().endswith(('.png', '.jpg', '.jpeg', '.bmp', '.gif', '.tiff', '.tif')): | |
| try: | |
| # Construct the full file path | |
| file_path = os.path.join(root, file) | |
| # Open the image | |
| img = Image.open(file_path) | |
| # Preserve alpha channel if present | |
| if img.mode in ('RGBA', 'LA') or (img.mode == 'P' and 'transparency' in img.info): | |
| # Convert to RGBA to preserve transparency | |
| img = img.convert('RGBA') | |
| new_img = Image.new("RGBA", target_size, (255, 255, 255, 0)) | |
| img.thumbnail(target_size, Image.Resampling.LANCZOS) # Updated resampling filter | |
| new_img.paste(img, (int((target_size[0] - img.size[0]) / 2), int((target_size[1] - img.size[1]) / 2))) | |
| else: | |
| # Resize without preserving transparency, using updated resampling filter | |
| img = img.resize(target_size, Image.Resampling.LANCZOS) | |
| # Construct the new file name and path | |
| new_file_name = os.path.splitext(file)[0] + "_lowres.png" | |
| new_file_path = os.path.join(root, new_file_name) | |
| # Save the resized image as a PNG file | |
| img.save(new_file_path, "PNG") | |
| print(f"Processed and saved: {new_file_path}") | |
| # Delete the original file | |
| os.remove(file_path) | |
| print(f"Deleted original file: {file_path}") | |
| except Exception as e: | |
| print(f"Error processing {file_path}: {e}") | |
| if __name__ == "__main__": | |
| # Replace '/path/to/your/folder' with the path to the folder you want to process | |
| # root_dir = '/path/to/your/folder' | |
| # Or run it on the script location folder | |
| root_dir = os.getcwd() | |
| resize_and_convert_images(root_dir) |
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