Update app.py

app.py

@@ -5,6 +5,7 @@ import os
 import logging
 from PIL import Image
 from image_processing import downscale_image, limit_colors, convert_to_grayscale, convert_to_black_and_white, resize_image, DITHER_METHODS, QUANTIZATION_METHODS
+import json 
 
 # Configuração de log
 logging.basicConfig(level=logging.DEBUG)