diff --git a/pixelocr/utils.py b/pixelocr/utils.py
index e7912d0..c1fc320 100644
--- a/pixelocr/utils.py
+++ b/pixelocr/utils.py
@@ -29,3 +29,10 @@ def cached_property(fun):
         ret = self._cache[fun] = fun(self)
         return ret
     return property(get)
+
+
+def collect_iterable(func):
+    @functools.wraps(func)
+    def collect(*args, **kwargs):
+        return list(func(*args, **kwargs))
+    return collect