From f019ed1fed0ef50a972f093751d1308f7e9a90bf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Johannes=20Sch=C3=B6nberger?= <jsch@demuc.de>
Date: Tue, 13 Aug 2013 14:59:24 +0200
Subject: [PATCH] Fix missing label property description and backwards
 compatibility

---
 skimage/measure/_regionprops.py           | 3 +++
 skimage/measure/tests/test_regionprops.py | 5 +++++
 2 files changed, 8 insertions(+)

diff --git a/skimage/measure/_regionprops.py b/skimage/measure/_regionprops.py
index bfe8139c..e3d02bf3 100644
--- a/skimage/measure/_regionprops.py
+++ b/skimage/measure/_regionprops.py
@@ -33,6 +33,7 @@ PROPS = {
     'FilledImage': 'filled_image',
     'HuMoments': 'hu_moments',
     'Image': 'image',
+    'Label': 'label',
     'MajorAxisLength': 'major_axis_length',
     'MaxIntensity': 'max_intensity',
     'MeanIntensity': 'mean_intensity',
@@ -386,6 +387,8 @@ def regionprops(label_image, properties=None,
         Inertia tensor of the region for the rotation around its masss.
     **inertia_tensor_eigvals** : tuple
         The two eigen values of the inertia tensor in decreasing order.
+    **label** : int
+        The label in the labelled input image.
     **major_axis_length** : float
         The length of the major axis of the ellipse that has the same
         normalized second central moments as the region.
diff --git a/skimage/measure/tests/test_regionprops.py b/skimage/measure/tests/test_regionprops.py
index c515a3fd..29da0456 100644
--- a/skimage/measure/tests/test_regionprops.py
+++ b/skimage/measure/tests/test_regionprops.py
@@ -149,6 +149,11 @@ def test_image():
     assert_array_equal(img, SAMPLE)
 
 
+def test_label():
+    label = regionprops(SAMPLE)[0].label
+    assert_array_equal(label, 1)
+
+
 def test_filled_area():
     area = regionprops(SAMPLE)[0].filled_area
     assert area == np.sum(SAMPLE)