From d5b72f91ab4c5db34aa29c2f44d730e2cd0f3e4d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jostein=20B=C3=B8=20Fl=C3=B8ystad?=
 <jostein.floystad@gmail.com>
Date: Sun, 14 Jul 2013 17:40:17 +0200
Subject: [PATCH] iradon: Do not suppress 0 frequency for filter=None.

---
 skimage/transform/radon_transform.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/skimage/transform/radon_transform.py b/skimage/transform/radon_transform.py
index fc827c8b..101d09c6 100644
--- a/skimage/transform/radon_transform.py
+++ b/skimage/transform/radon_transform.py
@@ -218,7 +218,7 @@ def iradon(radon_image, theta=None, output_size=None,
     elif filter == "hann":
         fourier_filter *= (1 + np.cos(omega / 2)) / 2
     elif filter is None:
-        f[1:] = 1
+        fourier_filter[:] = 1
     else:
         raise ValueError("Unknown filter: %s" % filter)
     # Apply filter in Fourier domain