From 554487f9de4b96671daf1cc4bb281aa844db4ac6 Mon Sep 17 00:00:00 2001
From: kuantkid <kuantkid@gmail.com>
Date: Mon, 10 Sep 2012 13:22:38 +0800
Subject: [PATCH] FIX: issue sign loss warning only for signed type

---
 skimage/util/dtype.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/skimage/util/dtype.py b/skimage/util/dtype.py
index cc492035..518ebf18 100644
--- a/skimage/util/dtype.py
+++ b/skimage/util/dtype.py
@@ -152,7 +152,8 @@ def convert(image, dtype, force_copy=False, uniform=False):
 
     if kind == 'b':
         # to binary image
-        sign_loss()
+        if kind_in in "fi":
+            sign_loss()
         prec_loss()
         return dtype(image)