From c86c6effe8ead802e01a8fa83aefc7bc945f2662 Mon Sep 17 00:00:00 2001
From: Daniel Wennberg <daniel.wennberg@gmail.com>
Date: Sat, 2 May 2015 16:52:44 +0200
Subject: [PATCH] Fix tests for #1257

The test of blob_doh() set an unrealistically strict threshold for the
accuracy of the estimated blob radius, causing the test to fail with the
true floating-point value (previously, the test passed only because
sigma was truncated to integer). Increasing the threshold fixes the
problem.
---
 skimage/feature/tests/test_blob.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/skimage/feature/tests/test_blob.py b/skimage/feature/tests/test_blob.py
index a46c442b..5def047c 100644
--- a/skimage/feature/tests/test_blob.py
+++ b/skimage/feature/tests/test_blob.py
@@ -141,7 +141,7 @@ def test_blob_doh():
 
     radius = lambda x: x[2]
     s = sorted(blobs, key=radius)
-    thresh = 3
+    thresh = 4
 
     b = s[0]
     assert abs(b[0] - 400) <= thresh