Update app.py

app.py

@@ -26,6 +26,7 @@ STEP3: 6-view 렌더 ZIP + Blender 오토리깅(FBX) + VRM(옵션) + 기본 Blen
 import os, io, json, time, math, random, shutil, zipfile, hashlib, tempfile, subprocess, textwrap, traceback
 from pathlib import Path
 from typing import Any, Dict, List, Optional, Tuple, Union
+from PIL import Image as PILImage, ImageDraw, ImageFilter
 
 import gradio as gr
 try:
@@ -666,7 +667,7 @@ def step1_gpu_refine(
         raise gr.Error("STEP1 이미지가 없습니다. 먼저 STEP1(CPU)을 실행하세요.")
 
     # 항상 먼저 로드 (UnboundLocal 방지)
-    img: Image.Image = Image.open(s1_path).convert("RGBA")
+    img: PILImage.Image = PILImage.open(s1_path).convert("RGBA")
     (OUT/"step1").mkdir(parents=True, exist_ok=True)
     try:
         img.save(OUT/"step1"/"dbg_00_loaded.png")