fix: handle EXIF orientation to prevent image auto-rotation

apps/jingrow/jingrow/tools/remove_background/remove_background.py

@@ -5,6 +5,9 @@ import base64
 import requests
 from typing import Dict, Any, Union
 import logging
+import io
+
+from PIL import Image, ImageOps
 
 import jingrow
 from jingrow.utils.auth import get_jingrow_cloud_api_headers, get_jingrow_cloud_api_url
@@ -67,6 +70,14 @@ def remove_background_from_file(image_data: Union[str, list]) -> Dict[str, Any]:
         # 解码base64数据
         image_bytes = base64.b64decode(base64_content)
         
+        # 处理EXIF orientation
+        image = Image.open(io.BytesIO(image_bytes))
+        image = ImageOps.exif_transpose(image)
+        output = io.BytesIO()
+        save_format = image.format or content_type.split('/')[-1].upper()
+        image.save(output, format=save_format)
+        image_bytes = output.getvalue()
+        
         # 调用文件上传端点
         api_url = f"{get_jingrow_cloud_api_url()}/rmbg/file"