From 33151f4349bdc899b817942b255a7b15c49605f9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Johannes=20Sch=C3=B6nberger?= <hannesschoenberger@gmail.com>
Date: Mon, 3 Sep 2012 21:40:45 +0200
Subject: [PATCH] Add missing doc string for inverse transform

---
 skimage/transform/_geometric.py | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/skimage/transform/_geometric.py b/skimage/transform/_geometric.py
index 6d64ec5c..ab530852 100644
--- a/skimage/transform/_geometric.py
+++ b/skimage/transform/_geometric.py
@@ -111,6 +111,19 @@ class ProjectiveTransform(GeometricTransform):
         return self._apply_mat(coords, self._matrix)
 
     def inverse(self, coords):
+        """Apply inverse transformation.
+
+        Parameters
+        ----------
+        coords : (N, 2) array
+            Source coordinates.
+
+        Returns
+        -------
+        coords : (N, 2) array
+            Transformed coordinates.
+
+        """
         return self._apply_mat(coords, self._inv_matrix)
 
     def estimate(self, src, dst):