Build a photo sorter by resolution

Sorting photos by resolution is a useful tool for organizing large image collections. Below is a comprehensive guide to building a photo sorter that reads images from a folder, sorts them by their resolution (width × height), and outputs the sorted list or moves/copies the files accordingly.

Photo Sorter by Resolution (Python)

python
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import os
from PIL import Image

def get_image_resolution(image_path):
    """Return (width, height) of the image."""
    with Image.open(image_path) as img:
        return img.size  # returns (width, height)

def sort_photos_by_resolution(folder_path):
    """Sort images in a folder by their resolution."""
    supported_formats = ('.jpg', '.jpeg', '.png', '.bmp', '.gif', '.tiff')
    images_info = []

    for filename in os.listdir(folder_path):
        if filename.lower().endswith(supported_formats):
            full_path = os.path.join(folder_path, filename)
            try:
                width, height = get_image_resolution(full_path)
                resolution = width * height
                images_info.append((filename, width, height, resolution))
            except Exception as e:
                print(f"Error reading {filename}: {e}")

    # Sort images by resolution (descending)
    images_info.sort(key=lambda x: x[3], reverse=True)
    return images_info

def print_sorted_images(images_info):
    """Print sorted image details."""
    for filename, width, height, resolution in images_info:
        print(f"{filename}: {width}x{height} ({resolution} pixels)")

if __name__ == "__main__":
    folder = input("Enter the folder path containing images: ").strip()
    sorted_images = sort_photos_by_resolution(folder)
    print_sorted_images(sorted_images)

Explanation:

• PIL (Pillow): Used for opening images and getting their dimensions.

• Supported formats: JPG, PNG, BMP, GIF, TIFF.

• Sorting logic: Images are sorted by total pixel count (width × height), descending order.

• Output: Prints file name and resolution details.

Optional Enhancements:

• Move files into subfolders by resolution category, e.g., High, Medium, Low.

• Copy files instead of just listing.

• GUI interface with Tkinter for user-friendliness.

• Export results to CSV or JSON.

If you want, I can help build any of these extensions!