From acc35c843b0afec51cd98ea85ce96836be61a990 Mon Sep 17 00:00:00 2001
From: Tony S Yu <tsyu80@gmail.com>
Date: Mon, 12 Dec 2011 23:22:45 -0500
Subject: [PATCH] Add comment about code duplication.

---
 skimage/detection/_template.pyx | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/skimage/detection/_template.pyx b/skimage/detection/_template.pyx
index 40ed261b..f3e89f8a 100644
--- a/skimage/detection/_template.pyx
+++ b/skimage/detection/_template.pyx
@@ -19,6 +19,10 @@ cdef double sum_integral(np.ndarray[np.double_t, ndim=2,  mode="c"] sat,
     Using a summed area table / integral image, calculate the sum
     over a given window.
 
+    This function is the same as the `integrate` function in
+    `skimage.transform.integrate`, but this Cython version significantly
+    speeds up the code.
+
     Parameters
     ----------
     sat : ndarray of double_t