From bc1efa7efdd54fc8e6ffde9774a4849ee1a0e68e Mon Sep 17 00:00:00 2001
From: Paul McCarthy <pauld.mccarthy@gmail.com>
Date: Thu, 12 Jan 2017 18:43:46 +0000
Subject: [PATCH] Some fixes to Image class
---
fsl/data/image.py | 20 +++++++++++++++++++-
1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/fsl/data/image.py b/fsl/data/image.py
index db4c04ea6..0fc1f6ff0 100644
--- a/fsl/data/image.py
+++ b/fsl/data/image.py
@@ -144,7 +144,7 @@ class Nifti(notifier.Notifier):
if not isinstance(header, nib.analyze.AnalyzeHeader):
raise ValueError('Unrecognised header: {}'.format(header))
- header = header.copy()
+ header = header
origShape, shape, pixdim = self.__determineShape(header)
if len(shape) < 3 or len(shape) > 4:
@@ -765,6 +765,23 @@ class Image(Nifti):
coords = [0] * len(self.__nibImage.shape)
return self.__nibImage.dataobj[tuple(coords)].dtype
+
+ @Nifti.voxToWorldMat.setter
+ def voxToWorldMat(self, xform):
+ """Overrides the :meth:`Nifti.voxToWorldMat` property setter.
+ In ``nibabel``, the header and image affines can easily get
+ out of sync when they are modified. The ``Nifti`` implementation
+ updates the header, and this implementation makes sure the
+ image is also updated.
+ """
+
+ Nifti.voxToWorldMat.fset(self, xform)
+
+ xform = self.voxToWorldMat
+
+ self.__nibImage.set_sform(xform)
+ self.__nibImage.set_qform(xform)
+
def __transformChanged(self, *args, **kwargs):
"""Called when the ``voxToWorldMat`` of this :class:`Nifti` instance
@@ -871,6 +888,7 @@ class Image(Nifti):
nib.save(self.__nibImage, filename)
self.__fileobj.close()
self.__nibImage, self.__fileobj = loadIndexedImageFile(filename)
+ self.header = self.__nibImage.get_header()
self.__dataSource = filename
self.__saveState = True
--
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