diff --git a/pywxdump/api/api.py b/pywxdump/api/api.py
index b6dec7c..d6ed166 100644
--- a/pywxdump/api/api.py
+++ b/pywxdump/api/api.py
@@ -374,7 +374,8 @@ def get_img(img_path):
     img_tmp_path = os.path.join(g.tmp_path, my_wxid, "img")
     original_img_path = os.path.join(wx_path, img_path)
     if os.path.exists(original_img_path):
-        fomt, md5, out_bytes = dat2img(original_img_path)
+        rc, fomt, md5, out_bytes = dat2img(original_img_path)
+
         imgsavepath = os.path.join(img_tmp_path, img_path + "_" + ".".join([md5, fomt]))
         if not os.path.exists(os.path.dirname(imgsavepath)):
             os.makedirs(os.path.dirname(imgsavepath))
diff --git a/pywxdump/dbpreprocess/utils.py b/pywxdump/dbpreprocess/utils.py
index 78e4a4e..9f4d900 100644
--- a/pywxdump/dbpreprocess/utils.py
+++ b/pywxdump/dbpreprocess/utils.py
@@ -170,8 +170,8 @@ def dat2img(input_data):
 
                 out_bytes = np.bitwise_xor(input_bytes, t)  # 使用NumPy进行向量化的异或解密操作
                 md5 = get_md5(out_bytes)
-                return fomt, md5, out_bytes
-        return False
+                return False, fomt, md5, out_bytes
+        return False, False, False, False
     except ImportError:
         pass
 
@@ -185,8 +185,8 @@ def dat2img(input_data):
                     newByte = nowByte ^ t  # 异或解密
                     out_bytes.append(newByte)
                 md5 = get_md5(out_bytes)
-                return fomt, md5, out_bytes
-    return False
+                return True, fomt, md5, out_bytes
+    return False, False, False, False
 
 
 def xml2dict(xml_string):