clear output

app.py

@@ -14,6 +14,15 @@ OUTPUT_GIF = Path(TARGET_DIR) / "output.gif"
 os.makedirs(TARGET_DIR, exist_ok=True)
 
 def interpolate_image(img_a_path: str, img_b_path: str) -> str:
+    # --- clear any previous output ---
+    if OUTPUT_GIF.exists():
+        OUTPUT_GIF.unlink()  # delete old GIF
+    if PALETTE_PNG.exists():
+        PALETTE_PNG.unlink()  # delete old palette
+    # optional: clear any old frame PNGs
+    for f in TARGET_DIR.glob("img*.png"):
+        f.unlink()
+        
     # 1) Run inference to generate frames into TARGET_DIR/img%d.png
     subprocess.run([
         "python3", "inference_img.py",