From 76afc63102fd53bc259d3dee3d105a985fd16008 Mon Sep 17 00:00:00 2001
From: Paul McCarthy <pauldmccarthy@gmail.com>
Date: Fri, 7 Sep 2018 15:20:46 +0100
Subject: [PATCH] BF: Make sure only the first few bytes of the image are read
when detecting memmaps
---
fsl/data/image.py | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fsl/data/image.py b/fsl/data/image.py
index 7af1e6960..6d1a7e4a8 100644
--- a/fsl/data/image.py
+++ b/fsl/data/image.py
@@ -1171,7 +1171,9 @@ class Image(Nifti):
# memory-mapped, nibabel does all of
# the hard work.
newnibimage = False
- ismmap = isinstance(self[0, 0, :10], np.memmap)
+ sample = self[(slice(0, 5),) + (0,) * (len(self.shape) - 1)]
+ ismmap = isinstance(sample, np.memmap)
+
if self.__fileobj is None and (not ismmap):
nib.save(self.__nibImage, filename)
--
GitLab