Update app.py

app.py

@@ -164,9 +164,9 @@ def prepare_image_and_mask(image, width, height, overlap_percentage, resize_opti
     margin_y = max(0, min(margin_y + y_offset, target_size[1] - new_height))
     
     if image.mode == "RGBA":
-        background = Image.new("RGBA", target_size, (255, 255, 255, 255)
+        background = Image.new("RGBA", target_size, (255, 255, 255, 255))
     else:
-        background = Image.new("RGB", target_size, (255, 255, 255)
+        background = Image.new("RGB", target_size, (255, 255, 255))
     
     background.paste(source, (margin_x, margin_y))