dds2png.py

import os
from PIL import Image

# Define your source and destination folders
input_dir = "./minimap_data"
output_dir = f"{input_dir}_processed"
os.makedirs(output_dir, exist_ok=True)

# Loop through all files in the directory
for filename in os.listdir(input_dir):
    if filename.lower().endswith(".dds"):
        try:
            # Construct full file paths
            img_path = os.path.join(input_dir, filename)
            # Create new filename by replacing extension
            png_name = os.path.splitext(filename)[0] + ".png"
            output_path = os.path.join(output_dir, png_name)
            
            # Open and convert
            with Image.open(img_path) as img:
                # DDS often uses RGBA; ensure compatibility
                img.convert("RGBA")\
                    .save(output_path, "PNG", optimize=True)
                print(f"Converted: {filename} -> {png_name}")
        except Exception as e:
            print(f"Failed to convert {filename}: {e}")

print("Batch processing complete.")