Update app.py

app.py

@@ -67,6 +67,8 @@ def process_file(input_file):
 
     input_folder = 'output_images'
     for i, img in enumerate(images):
+        if img.mode == 'RGBA':
+            img = img.convert('RGB')
         img.save(os.path.join(input_folder, f'image_{i}.jpg'))
 
     return images