fix: 修復圖片輸入處理 (支援 URL/Path/Bytes 多種格式)

app.py

@@ -534,14 +534,39 @@ def process_image(
     if image is None:
         return json.dumps({"error": "❌ 請上傳圖片"}, ensure_ascii=False, indent=2)
 
-    # 讀取圖片數據
-    file_path = image if isinstance(image, str) else "uploaded_image"
+    # 讀取圖片數據 (支援多種輸入格式)
+    file_path = "uploaded_image"
+    file_bytes = None
 
+    # Gradio 5.x 可能傳入字符串路徑或 bytes
     if isinstance(image, str):
-        with open(image, 'rb') as f:
-            file_bytes = f.read()
-    else:
+        # 檢查是否為 URL
+        if image.startswith(('http://', 'https://')):
+            import urllib.request
+            try:
+                with urllib.request.urlopen(image, timeout=30) as resp:
+                    file_bytes = resp.read()
+                file_path = image.split('/')[-1] or "url_image"
+            except Exception as e:
+                return json.dumps({"error": f"❌ 無法下載圖片: {e}"}, ensure_ascii=False, indent=2)
+        else:
+            # 本地檔案路徑
+            try:
+                with open(image, 'rb') as f:
+                    file_bytes = f.read()
+                file_path = image
+            except Exception as e:
+                return json.dumps({"error": f"❌ 無法讀取圖片: {e}"}, ensure_ascii=False, indent=2)
+    elif isinstance(image, bytes):
         file_bytes = image
+    elif hasattr(image, 'read'):
+        # File-like object
+        file_bytes = image.read()
+    else:
+        return json.dumps({"error": f"❌ 不支援的圖片格式: {type(image)}"}, ensure_ascii=False, indent=2)
+
+    if file_bytes is None:
+        return json.dumps({"error": "❌ 無法讀取圖片數據"}, ensure_ascii=False, indent=2)
 
     # ============================================
     # 🛡️ 檔案驗證