Merge branch 'master' into parallel_vec

21 files changed, 424 insertions, 362 deletions

diff --git a/samples/python/s001_sinogram_par2d.py b/samples/python/s001_sinogram_par2d.py
index 1d1b912..11ca748 100644
--- a/samples/python/s001_sinogram_par2d.py
+++ b/samples/python/s001_sinogram_par2d.py
@@ -1,28 +1,27 @@
-#-----------------------------------------------------------------------
-#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+# -----------------------------------------------------------------------
+# Copyright: 2010-2016, iMinds-Vision Lab, University of Antwerp
+#            2013-2016, CWI, Amsterdam
 #
-#Author: Daniel M. Pelt
-#Contact: D.M.Pelt@cwi.nl
-#Website: http://dmpelt.github.io/pyastratoolbox/
+# Contact: astra@uantwerpen.be
+# Website: http://www.astra-toolbox.com/
 #
+# This file is part of the ASTRA Toolbox.
 #
-#This file is part of the Python interface to the
-#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
 #
-#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
-#it under the terms of the GNU General Public License as published by
-#the Free Software Foundation, either version 3 of the License, or
-#(at your option) any later version.
+# The ASTRA Toolbox is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
-#but WITHOUT ANY WARRANTY; without even the implied warranty of
-#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-#GNU General Public License for more details.
+# The ASTRA Toolbox is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
 #
-#You should have received a copy of the GNU General Public License
-#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+# You should have received a copy of the GNU General Public License
+# along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
 #
-#-----------------------------------------------------------------------
+# -----------------------------------------------------------------------
 
 import astra
 import numpy as np
diff --git a/samples/python/s002_data2d.py b/samples/python/s002_data2d.py
index 35fb91f..b7fc969 100644
--- a/samples/python/s002_data2d.py
+++ b/samples/python/s002_data2d.py
@@ -1,28 +1,27 @@
-#-----------------------------------------------------------------------
-#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+# -----------------------------------------------------------------------
+# Copyright: 2010-2016, iMinds-Vision Lab, University of Antwerp
+#            2013-2016, CWI, Amsterdam
 #
-#Author: Daniel M. Pelt
-#Contact: D.M.Pelt@cwi.nl
-#Website: http://dmpelt.github.io/pyastratoolbox/
+# Contact: astra@uantwerpen.be
+# Website: http://www.astra-toolbox.com/
 #
+# This file is part of the ASTRA Toolbox.
 #
-#This file is part of the Python interface to the
-#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
 #
-#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
-#it under the terms of the GNU General Public License as published by
-#the Free Software Foundation, either version 3 of the License, or
-#(at your option) any later version.
+# The ASTRA Toolbox is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
-#but WITHOUT ANY WARRANTY; without even the implied warranty of
-#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-#GNU General Public License for more details.
+# The ASTRA Toolbox is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
 #
-#You should have received a copy of the GNU General Public License
-#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+# You should have received a copy of the GNU General Public License
+# along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
 #
-#-----------------------------------------------------------------------
+# -----------------------------------------------------------------------
 
 import astra
 import numpy as np
diff --git a/samples/python/s003_gpu_reconstruction.py b/samples/python/s003_gpu_reconstruction.py
index 07b38ef..1a94b55 100644
--- a/samples/python/s003_gpu_reconstruction.py
+++ b/samples/python/s003_gpu_reconstruction.py
@@ -1,28 +1,27 @@
-#-----------------------------------------------------------------------
-#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+# -----------------------------------------------------------------------
+# Copyright: 2010-2016, iMinds-Vision Lab, University of Antwerp
+#            2013-2016, CWI, Amsterdam
 #
-#Author: Daniel M. Pelt
-#Contact: D.M.Pelt@cwi.nl
-#Website: http://dmpelt.github.io/pyastratoolbox/
+# Contact: astra@uantwerpen.be
+# Website: http://www.astra-toolbox.com/
 #
+# This file is part of the ASTRA Toolbox.
 #
-#This file is part of the Python interface to the
-#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
 #
-#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
-#it under the terms of the GNU General Public License as published by
-#the Free Software Foundation, either version 3 of the License, or
-#(at your option) any later version.
+# The ASTRA Toolbox is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
-#but WITHOUT ANY WARRANTY; without even the implied warranty of
-#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-#GNU General Public License for more details.
+# The ASTRA Toolbox is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
 #
-#You should have received a copy of the GNU General Public License
-#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+# You should have received a copy of the GNU General Public License
+# along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
 #
-#-----------------------------------------------------------------------
+# -----------------------------------------------------------------------
 
 import astra
 import numpy as np
diff --git a/samples/python/s004_cpu_reconstruction.py b/samples/python/s004_cpu_reconstruction.py
index 8385cf8..3b6ffbe 100644
--- a/samples/python/s004_cpu_reconstruction.py
+++ b/samples/python/s004_cpu_reconstruction.py
@@ -1,28 +1,27 @@
-#-----------------------------------------------------------------------
-#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+# -----------------------------------------------------------------------
+# Copyright: 2010-2016, iMinds-Vision Lab, University of Antwerp
+#            2013-2016, CWI, Amsterdam
 #
-#Author: Daniel M. Pelt
-#Contact: D.M.Pelt@cwi.nl
-#Website: http://dmpelt.github.io/pyastratoolbox/
+# Contact: astra@uantwerpen.be
+# Website: http://www.astra-toolbox.com/
 #
+# This file is part of the ASTRA Toolbox.
 #
-#This file is part of the Python interface to the
-#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
 #
-#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
-#it under the terms of the GNU General Public License as published by
-#the Free Software Foundation, either version 3 of the License, or
-#(at your option) any later version.
+# The ASTRA Toolbox is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
-#but WITHOUT ANY WARRANTY; without even the implied warranty of
-#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-#GNU General Public License for more details.
+# The ASTRA Toolbox is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
 #
-#You should have received a copy of the GNU General Public License
-#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+# You should have received a copy of the GNU General Public License
+# along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
 #
-#-----------------------------------------------------------------------
+# -----------------------------------------------------------------------
 
 import astra
 import numpy as np
diff --git a/samples/python/s005_3d_geometry.py b/samples/python/s005_3d_geometry.py
index a7f7a3d..cd48b1e 100644
--- a/samples/python/s005_3d_geometry.py
+++ b/samples/python/s005_3d_geometry.py
@@ -1,28 +1,27 @@
-#-----------------------------------------------------------------------
-#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+# -----------------------------------------------------------------------
+# Copyright: 2010-2016, iMinds-Vision Lab, University of Antwerp
+#            2013-2016, CWI, Amsterdam
 #
-#Author: Daniel M. Pelt
-#Contact: D.M.Pelt@cwi.nl
-#Website: http://dmpelt.github.io/pyastratoolbox/
+# Contact: astra@uantwerpen.be
+# Website: http://www.astra-toolbox.com/
 #
+# This file is part of the ASTRA Toolbox.
 #
-#This file is part of the Python interface to the
-#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
 #
-#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
-#it under the terms of the GNU General Public License as published by
-#the Free Software Foundation, either version 3 of the License, or
-#(at your option) any later version.
+# The ASTRA Toolbox is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
-#but WITHOUT ANY WARRANTY; without even the implied warranty of
-#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-#GNU General Public License for more details.
+# The ASTRA Toolbox is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
 #
-#You should have received a copy of the GNU General Public License
-#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+# You should have received a copy of the GNU General Public License
+# along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
 #
-#-----------------------------------------------------------------------
+# -----------------------------------------------------------------------
 
 try:
     from six.moves import range
diff --git a/samples/python/s006_3d_data.py b/samples/python/s006_3d_data.py
index 5178179..50efd99 100644
--- a/samples/python/s006_3d_data.py
+++ b/samples/python/s006_3d_data.py
@@ -1,28 +1,27 @@
-#-----------------------------------------------------------------------
-#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+# -----------------------------------------------------------------------
+# Copyright: 2010-2016, iMinds-Vision Lab, University of Antwerp
+#            2013-2016, CWI, Amsterdam
 #
-#Author: Daniel M. Pelt
-#Contact: D.M.Pelt@cwi.nl
-#Website: http://dmpelt.github.io/pyastratoolbox/
+# Contact: astra@uantwerpen.be
+# Website: http://www.astra-toolbox.com/
 #
+# This file is part of the ASTRA Toolbox.
 #
-#This file is part of the Python interface to the
-#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
 #
-#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
-#it under the terms of the GNU General Public License as published by
-#the Free Software Foundation, either version 3 of the License, or
-#(at your option) any later version.
+# The ASTRA Toolbox is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
-#but WITHOUT ANY WARRANTY; without even the implied warranty of
-#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-#GNU General Public License for more details.
+# The ASTRA Toolbox is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
 #
-#You should have received a copy of the GNU General Public License
-#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+# You should have received a copy of the GNU General Public License
+# along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
 #
-#-----------------------------------------------------------------------
+# -----------------------------------------------------------------------
 
 import astra
 import numpy as np
diff --git a/samples/python/s007_3d_reconstruction.py b/samples/python/s007_3d_reconstruction.py
index 40e9556..85d029a 100644
--- a/samples/python/s007_3d_reconstruction.py
+++ b/samples/python/s007_3d_reconstruction.py
@@ -1,28 +1,27 @@
-#-----------------------------------------------------------------------
-#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+# -----------------------------------------------------------------------
+# Copyright: 2010-2016, iMinds-Vision Lab, University of Antwerp
+#            2013-2016, CWI, Amsterdam
 #
-#Author: Daniel M. Pelt
-#Contact: D.M.Pelt@cwi.nl
-#Website: http://dmpelt.github.io/pyastratoolbox/
+# Contact: astra@uantwerpen.be
+# Website: http://www.astra-toolbox.com/
 #
+# This file is part of the ASTRA Toolbox.
 #
-#This file is part of the Python interface to the
-#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
 #
-#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
-#it under the terms of the GNU General Public License as published by
-#the Free Software Foundation, either version 3 of the License, or
-#(at your option) any later version.
+# The ASTRA Toolbox is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
-#but WITHOUT ANY WARRANTY; without even the implied warranty of
-#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-#GNU General Public License for more details.
+# The ASTRA Toolbox is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
 #
-#You should have received a copy of the GNU General Public License
-#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+# You should have received a copy of the GNU General Public License
+# along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
 #
-#-----------------------------------------------------------------------
+# -----------------------------------------------------------------------
 
 import astra
 import numpy as np
diff --git a/samples/python/s008_gpu_selection.py b/samples/python/s008_gpu_selection.py
index a180802..9fa9d49 100644
--- a/samples/python/s008_gpu_selection.py
+++ b/samples/python/s008_gpu_selection.py
@@ -1,28 +1,27 @@
-#-----------------------------------------------------------------------
-#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+# -----------------------------------------------------------------------
+# Copyright: 2010-2016, iMinds-Vision Lab, University of Antwerp
+#            2013-2016, CWI, Amsterdam
 #
-#Author: Daniel M. Pelt
-#Contact: D.M.Pelt@cwi.nl
-#Website: http://dmpelt.github.io/pyastratoolbox/
+# Contact: astra@uantwerpen.be
+# Website: http://www.astra-toolbox.com/
 #
+# This file is part of the ASTRA Toolbox.
 #
-#This file is part of the Python interface to the
-#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
 #
-#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
-#it under the terms of the GNU General Public License as published by
-#the Free Software Foundation, either version 3 of the License, or
-#(at your option) any later version.
+# The ASTRA Toolbox is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
-#but WITHOUT ANY WARRANTY; without even the implied warranty of
-#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-#GNU General Public License for more details.
+# The ASTRA Toolbox is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
 #
-#You should have received a copy of the GNU General Public License
-#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+# You should have received a copy of the GNU General Public License
+# along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
 #
-#-----------------------------------------------------------------------
+# -----------------------------------------------------------------------
 
 import astra
 import numpy as np
diff --git a/samples/python/s009_projection_matrix.py b/samples/python/s009_projection_matrix.py
index e20d58c..dccaa4b 100644
--- a/samples/python/s009_projection_matrix.py
+++ b/samples/python/s009_projection_matrix.py
@@ -1,28 +1,27 @@
-#-----------------------------------------------------------------------
-#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+# -----------------------------------------------------------------------
+# Copyright: 2010-2016, iMinds-Vision Lab, University of Antwerp
+#            2013-2016, CWI, Amsterdam
 #
-#Author: Daniel M. Pelt
-#Contact: D.M.Pelt@cwi.nl
-#Website: http://dmpelt.github.io/pyastratoolbox/
+# Contact: astra@uantwerpen.be
+# Website: http://www.astra-toolbox.com/
 #
+# This file is part of the ASTRA Toolbox.
 #
-#This file is part of the Python interface to the
-#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
 #
-#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
-#it under the terms of the GNU General Public License as published by
-#the Free Software Foundation, either version 3 of the License, or
-#(at your option) any later version.
+# The ASTRA Toolbox is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
-#but WITHOUT ANY WARRANTY; without even the implied warranty of
-#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-#GNU General Public License for more details.
+# The ASTRA Toolbox is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
 #
-#You should have received a copy of the GNU General Public License
-#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+# You should have received a copy of the GNU General Public License
+# along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
 #
-#-----------------------------------------------------------------------
+# -----------------------------------------------------------------------
 
 import astra
 import numpy as np
diff --git a/samples/python/s010_supersampling.py b/samples/python/s010_supersampling.py
index 1a337bc..42d7296 100644
--- a/samples/python/s010_supersampling.py
+++ b/samples/python/s010_supersampling.py
@@ -1,28 +1,27 @@
-#-----------------------------------------------------------------------
-#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+# -----------------------------------------------------------------------
+# Copyright: 2010-2016, iMinds-Vision Lab, University of Antwerp
+#            2013-2016, CWI, Amsterdam
 #
-#Author: Daniel M. Pelt
-#Contact: D.M.Pelt@cwi.nl
-#Website: http://dmpelt.github.io/pyastratoolbox/
+# Contact: astra@uantwerpen.be
+# Website: http://www.astra-toolbox.com/
 #
+# This file is part of the ASTRA Toolbox.
 #
-#This file is part of the Python interface to the
-#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
 #
-#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
-#it under the terms of the GNU General Public License as published by
-#the Free Software Foundation, either version 3 of the License, or
-#(at your option) any later version.
+# The ASTRA Toolbox is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
-#but WITHOUT ANY WARRANTY; without even the implied warranty of
-#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-#GNU General Public License for more details.
+# The ASTRA Toolbox is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
 #
-#You should have received a copy of the GNU General Public License
-#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+# You should have received a copy of the GNU General Public License
+# along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
 #
-#-----------------------------------------------------------------------
+# -----------------------------------------------------------------------
 
 import astra
 import numpy as np
diff --git a/samples/python/s011_object_info.py b/samples/python/s011_object_info.py
index 02f387a..3442a9f 100644
--- a/samples/python/s011_object_info.py
+++ b/samples/python/s011_object_info.py
@@ -1,28 +1,27 @@
-#-----------------------------------------------------------------------
-#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+# -----------------------------------------------------------------------
+# Copyright: 2010-2016, iMinds-Vision Lab, University of Antwerp
+#            2013-2016, CWI, Amsterdam
 #
-#Author: Daniel M. Pelt
-#Contact: D.M.Pelt@cwi.nl
-#Website: http://dmpelt.github.io/pyastratoolbox/
+# Contact: astra@uantwerpen.be
+# Website: http://www.astra-toolbox.com/
 #
+# This file is part of the ASTRA Toolbox.
 #
-#This file is part of the Python interface to the
-#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
 #
-#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
-#it under the terms of the GNU General Public License as published by
-#the Free Software Foundation, either version 3 of the License, or
-#(at your option) any later version.
+# The ASTRA Toolbox is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
-#but WITHOUT ANY WARRANTY; without even the implied warranty of
-#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-#GNU General Public License for more details.
+# The ASTRA Toolbox is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
 #
-#You should have received a copy of the GNU General Public License
-#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+# You should have received a copy of the GNU General Public License
+# along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
 #
-#-----------------------------------------------------------------------
+# -----------------------------------------------------------------------
 
 import astra
 
diff --git a/samples/python/s012_masks.py b/samples/python/s012_masks.py
index 0f667b0..073515f 100644
--- a/samples/python/s012_masks.py
+++ b/samples/python/s012_masks.py
@@ -1,29 +1,27 @@
-#-----------------------------------------------------------------------
-#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+# -----------------------------------------------------------------------
+# Copyright: 2010-2016, iMinds-Vision Lab, University of Antwerp
+#            2013-2016, CWI, Amsterdam
 #
-#Author: Daniel M. Pelt
-#Contact: D.M.Pelt@cwi.nl
-#Website: http://dmpelt.github.io/pyastratoolbox/
+# Contact: astra@uantwerpen.be
+# Website: http://www.astra-toolbox.com/
 #
+# This file is part of the ASTRA Toolbox.
 #
-#This file is part of the Python interface to the
-#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
 #
-#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
-#it under the terms of the GNU General Public License as published by
-#the Free Software Foundation, either version 3 of the License, or
-#(at your option) any later version.
+# The ASTRA Toolbox is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
-#but WITHOUT ANY WARRANTY; without even the implied warranty of
-#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-#GNU General Public License for more details.
+# The ASTRA Toolbox is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
 #
-#You should have received a copy of the GNU General Public License
-#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+# You should have received a copy of the GNU General Public License
+# along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
 #
-#-----------------------------------------------------------------------
-
+# -----------------------------------------------------------------------
 
 import astra
 import numpy as np
diff --git a/samples/python/s013_constraints.py b/samples/python/s013_constraints.py
index 8b63d5e..ca8b2d8 100644
--- a/samples/python/s013_constraints.py
+++ b/samples/python/s013_constraints.py
@@ -1,28 +1,27 @@
-#-----------------------------------------------------------------------
-#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+# -----------------------------------------------------------------------
+# Copyright: 2010-2016, iMinds-Vision Lab, University of Antwerp
+#            2013-2016, CWI, Amsterdam
 #
-#Author: Daniel M. Pelt
-#Contact: D.M.Pelt@cwi.nl
-#Website: http://dmpelt.github.io/pyastratoolbox/
+# Contact: astra@uantwerpen.be
+# Website: http://www.astra-toolbox.com/
 #
+# This file is part of the ASTRA Toolbox.
 #
-#This file is part of the Python interface to the
-#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
 #
-#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
-#it under the terms of the GNU General Public License as published by
-#the Free Software Foundation, either version 3 of the License, or
-#(at your option) any later version.
+# The ASTRA Toolbox is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
-#but WITHOUT ANY WARRANTY; without even the implied warranty of
-#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-#GNU General Public License for more details.
+# The ASTRA Toolbox is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
 #
-#You should have received a copy of the GNU General Public License
-#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+# You should have received a copy of the GNU General Public License
+# along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
 #
-#-----------------------------------------------------------------------
+# -----------------------------------------------------------------------
 
 import astra
 import numpy as np
diff --git a/samples/python/s014_FBP.py b/samples/python/s014_FBP.py
index 2f8e388..051eff7 100644
--- a/samples/python/s014_FBP.py
+++ b/samples/python/s014_FBP.py
@@ -1,28 +1,27 @@
-#-----------------------------------------------------------------------
-#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+# -----------------------------------------------------------------------
+# Copyright: 2010-2016, iMinds-Vision Lab, University of Antwerp
+#            2013-2016, CWI, Amsterdam
 #
-#Author: Daniel M. Pelt
-#Contact: D.M.Pelt@cwi.nl
-#Website: http://dmpelt.github.io/pyastratoolbox/
+# Contact: astra@uantwerpen.be
+# Website: http://www.astra-toolbox.com/
 #
+# This file is part of the ASTRA Toolbox.
 #
-#This file is part of the Python interface to the
-#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
 #
-#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
-#it under the terms of the GNU General Public License as published by
-#the Free Software Foundation, either version 3 of the License, or
-#(at your option) any later version.
+# The ASTRA Toolbox is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
-#but WITHOUT ANY WARRANTY; without even the implied warranty of
-#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-#GNU General Public License for more details.
+# The ASTRA Toolbox is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
 #
-#You should have received a copy of the GNU General Public License
-#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+# You should have received a copy of the GNU General Public License
+# along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
 #
-#-----------------------------------------------------------------------
+# -----------------------------------------------------------------------
 
 import astra
 import numpy as np
diff --git a/samples/python/s015_fp_bp.py b/samples/python/s015_fp_bp.py
index ff0b30a..5d5e945 100644
--- a/samples/python/s015_fp_bp.py
+++ b/samples/python/s015_fp_bp.py
@@ -1,29 +1,27 @@
-#-----------------------------------------------------------------------
-#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+# -----------------------------------------------------------------------
+# Copyright: 2010-2016, iMinds-Vision Lab, University of Antwerp
+#            2013-2016, CWI, Amsterdam
 #
-#Author: Daniel M. Pelt
-#Contact: D.M.Pelt@cwi.nl
-#Website: http://dmpelt.github.io/pyastratoolbox/
+# Contact: astra@uantwerpen.be
+# Website: http://www.astra-toolbox.com/
 #
+# This file is part of the ASTRA Toolbox.
 #
-#This file is part of the Python interface to the
-#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
 #
-#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
-#it under the terms of the GNU General Public License as published by
-#the Free Software Foundation, either version 3 of the License, or
-#(at your option) any later version.
+# The ASTRA Toolbox is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
-#but WITHOUT ANY WARRANTY; without even the implied warranty of
-#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-#GNU General Public License for more details.
+# The ASTRA Toolbox is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
 #
-#You should have received a copy of the GNU General Public License
-#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+# You should have received a copy of the GNU General Public License
+# along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
 #
-#-----------------------------------------------------------------------
-
+# -----------------------------------------------------------------------
 
 # This example demonstrates using the FP and BP primitives with Matlab's lsqr
 # solver. Calls to FP (astra.create_sino) and
diff --git a/samples/python/s016_plots.py b/samples/python/s016_plots.py
index 8a8ba64..cc2a53a 100644
--- a/samples/python/s016_plots.py
+++ b/samples/python/s016_plots.py
@@ -1,28 +1,27 @@
-#-----------------------------------------------------------------------
-#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+# -----------------------------------------------------------------------
+# Copyright: 2010-2016, iMinds-Vision Lab, University of Antwerp
+#            2013-2016, CWI, Amsterdam
 #
-#Author: Daniel M. Pelt
-#Contact: D.M.Pelt@cwi.nl
-#Website: http://dmpelt.github.io/pyastratoolbox/
+# Contact: astra@uantwerpen.be
+# Website: http://www.astra-toolbox.com/
 #
+# This file is part of the ASTRA Toolbox.
 #
-#This file is part of the Python interface to the
-#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
 #
-#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
-#it under the terms of the GNU General Public License as published by
-#the Free Software Foundation, either version 3 of the License, or
-#(at your option) any later version.
+# The ASTRA Toolbox is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
-#but WITHOUT ANY WARRANTY; without even the implied warranty of
-#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-#GNU General Public License for more details.
+# The ASTRA Toolbox is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
 #
-#You should have received a copy of the GNU General Public License
-#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+# You should have received a copy of the GNU General Public License
+# along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
 #
-#-----------------------------------------------------------------------
+# -----------------------------------------------------------------------
 
 try:
     from six.moves import range
diff --git a/samples/python/s017_OpTomo.py b/samples/python/s017_OpTomo.py
index 214e9a7..b568570 100644
--- a/samples/python/s017_OpTomo.py
+++ b/samples/python/s017_OpTomo.py
@@ -1,28 +1,27 @@
-#-----------------------------------------------------------------------
-#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+# -----------------------------------------------------------------------
+# Copyright: 2010-2016, iMinds-Vision Lab, University of Antwerp
+#            2013-2016, CWI, Amsterdam
 #
-#Author: Daniel M. Pelt
-#Contact: D.M.Pelt@cwi.nl
-#Website: http://dmpelt.github.io/pyastratoolbox/
+# Contact: astra@uantwerpen.be
+# Website: http://www.astra-toolbox.com/
 #
+# This file is part of the ASTRA Toolbox.
 #
-#This file is part of the Python interface to the
-#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
 #
-#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
-#it under the terms of the GNU General Public License as published by
-#the Free Software Foundation, either version 3 of the License, or
-#(at your option) any later version.
+# The ASTRA Toolbox is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
-#but WITHOUT ANY WARRANTY; without even the implied warranty of
-#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-#GNU General Public License for more details.
+# The ASTRA Toolbox is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
 #
-#You should have received a copy of the GNU General Public License
-#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+# You should have received a copy of the GNU General Public License
+# along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
 #
-#-----------------------------------------------------------------------
+# -----------------------------------------------------------------------
 
 import astra
 import numpy as np
diff --git a/samples/python/s018_plugin.py b/samples/python/s018_plugin.py
index 85b5486..dbd9274 100644
--- a/samples/python/s018_plugin.py
+++ b/samples/python/s018_plugin.py
@@ -1,28 +1,27 @@
-#-----------------------------------------------------------------------
-#Copyright 2015 Centrum Wiskunde & Informatica, Amsterdam
+# -----------------------------------------------------------------------
+# Copyright: 2010-2016, iMinds-Vision Lab, University of Antwerp
+#            2013-2016, CWI, Amsterdam
 #
-#Author: Daniel M. Pelt
-#Contact: D.M.Pelt@cwi.nl
-#Website: http://dmpelt.github.io/pyastratoolbox/
+# Contact: astra@uantwerpen.be
+# Website: http://www.astra-toolbox.com/
 #
+# This file is part of the ASTRA Toolbox.
 #
-#This file is part of the Python interface to the
-#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
 #
-#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
-#it under the terms of the GNU General Public License as published by
-#the Free Software Foundation, either version 3 of the License, or
-#(at your option) any later version.
+# The ASTRA Toolbox is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
-#but WITHOUT ANY WARRANTY; without even the implied warranty of
-#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-#GNU General Public License for more details.
+# The ASTRA Toolbox is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
 #
-#You should have received a copy of the GNU General Public License
-#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+# You should have received a copy of the GNU General Public License
+# along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
 #
-#-----------------------------------------------------------------------
+# -----------------------------------------------------------------------
 
 import astra
 import numpy as np
@@ -124,6 +123,14 @@ if __name__=='__main__':
     # We can also use OpTomo to call the plugin
     rec_op = W.reconstruct('LANDWEBER-PLUGIN', sinogram, 100, extraOptions={'Relaxation':1.5})
 
+
+    # ASTRA also comes with built-in plugins:
+    astra.plugin.register(astra.plugins.SIRTPlugin)
+    astra.plugin.register(astra.plugins.CGLSPlugin)
+    rec_sirt = W.reconstruct('SIRT-PLUGIN', sinogram, 100, extraOptions={'Relaxation':1.5})
+    rec_cgls = W.reconstruct('CGLS-PLUGIN', sinogram, 100)
+
+
     import pylab as pl
     pl.gray()
     pl.figure(1)
@@ -132,6 +139,10 @@ if __name__=='__main__':
     pl.imshow(rec_rel,vmin=0,vmax=1)
     pl.figure(3)
     pl.imshow(rec_op,vmin=0,vmax=1)
+    pl.figure(4)
+    pl.imshow(rec_sirt,vmin=0,vmax=1)
+    pl.figure(5)
+    pl.imshow(rec_cgls,vmin=0,vmax=1)
     pl.show()
 
     # Clean up.
diff --git a/samples/python/s019_experimental_multires.py b/samples/python/s019_experimental_multires.py
index cf38e53..1aff223 100644
--- a/samples/python/s019_experimental_multires.py
+++ b/samples/python/s019_experimental_multires.py
@@ -1,28 +1,27 @@
-#-----------------------------------------------------------------------
-#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+# -----------------------------------------------------------------------
+# Copyright: 2010-2016, iMinds-Vision Lab, University of Antwerp
+#            2013-2016, CWI, Amsterdam
 #
-#Author: Daniel M. Pelt
-#Contact: D.M.Pelt@cwi.nl
-#Website: http://dmpelt.github.io/pyastratoolbox/
+# Contact: astra@uantwerpen.be
+# Website: http://www.astra-toolbox.com/
 #
+# This file is part of the ASTRA Toolbox.
 #
-#This file is part of the Python interface to the
-#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
 #
-#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
-#it under the terms of the GNU General Public License as published by
-#the Free Software Foundation, either version 3 of the License, or
-#(at your option) any later version.
+# The ASTRA Toolbox is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
-#but WITHOUT ANY WARRANTY; without even the implied warranty of
-#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-#GNU General Public License for more details.
+# The ASTRA Toolbox is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
 #
-#You should have received a copy of the GNU General Public License
-#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+# You should have received a copy of the GNU General Public License
+# along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
 #
-#-----------------------------------------------------------------------
+# -----------------------------------------------------------------------
 
 import astra
 import numpy as np
diff --git a/samples/python/s020_3d_multiGPU.py b/samples/python/s020_3d_multiGPU.py
index d6799c4..11a1e11 100644
--- a/samples/python/s020_3d_multiGPU.py
+++ b/samples/python/s020_3d_multiGPU.py
@@ -1,28 +1,27 @@
-#-----------------------------------------------------------------------
-#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+# -----------------------------------------------------------------------
+# Copyright: 2010-2016, iMinds-Vision Lab, University of Antwerp
+#            2013-2016, CWI, Amsterdam
 #
-#Author: Daniel M. Pelt
-#Contact: D.M.Pelt@cwi.nl
-#Website: http://dmpelt.github.io/pyastratoolbox/
+# Contact: astra@uantwerpen.be
+# Website: http://www.astra-toolbox.com/
 #
+# This file is part of the ASTRA Toolbox.
 #
-#This file is part of the Python interface to the
-#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
 #
-#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
-#it under the terms of the GNU General Public License as published by
-#the Free Software Foundation, either version 3 of the License, or
-#(at your option) any later version.
+# The ASTRA Toolbox is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
-#but WITHOUT ANY WARRANTY; without even the implied warranty of
-#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-#GNU General Public License for more details.
+# The ASTRA Toolbox is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
 #
-#You should have received a copy of the GNU General Public License
-#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+# You should have received a copy of the GNU General Public License
+# along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
 #
-#-----------------------------------------------------------------------
+# -----------------------------------------------------------------------
 
 import astra
 import numpy as np
diff --git a/samples/python/s021_pygpu.py b/samples/python/s021_pygpu.py
new file mode 100644
index 0000000..db6584b
--- /dev/null
+++ b/samples/python/s021_pygpu.py
@@ -0,0 +1,72 @@
+# -----------------------------------------------------------------------
+# Copyright: 2010-2016, iMinds-Vision Lab, University of Antwerp
+#            2013-2016, CWI, Amsterdam
+#
+# Contact: astra@uantwerpen.be
+# Website: http://www.astra-toolbox.com/
+#
+# This file is part of the ASTRA Toolbox.
+#
+#
+# The ASTRA Toolbox is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# The ASTRA Toolbox is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+# -----------------------------------------------------------------------
+
+import astra
+import numpy as np
+import pygpu
+import pylab
+
+# Initialize pygpu
+ctx = pygpu.init('cuda')
+pygpu.set_default_context(ctx)
+
+vol_geom = astra.create_vol_geom(128, 128, 128)
+angles = np.linspace(0, 2 * np.pi, 180, False)
+proj_geom = astra.create_proj_geom('cone', 1.0, 1.0, 128, 192, angles, 1000, 0)
+
+# Create a simple hollow cube phantom, as a pygpu gpuarray
+vol_gpuarr = pygpu.gpuarray.zeros(astra.functions.geom_size(vol_geom), dtype='float32')
+vol_gpuarr[17:113, 17:113, 17:113] = 1
+vol_gpuarr[33:97, 33:97, 33:97] = 0
+
+# Create a pygpu gpuarray for the output projection data
+proj_gpuarr = pygpu.gpuarray.zeros(astra.functions.geom_size(proj_geom), dtype='float32')
+
+# Create the astra GPULink objects and create astra data3d objects from them
+z, y, x = proj_gpuarr.shape
+proj_data_link = astra.data3d.GPULink(proj_gpuarr.gpudata, x, y, z,
+                                      proj_gpuarr.strides[-2])
+z, y, x = vol_gpuarr.shape
+vol_link = astra.data3d.GPULink(vol_gpuarr.gpudata, x, y, z,
+                                vol_gpuarr.strides[-2])
+
+proj_id = astra.data3d.link('-sino', proj_geom, proj_data_link)
+vol_id = astra.data3d.link('-vol', vol_geom, vol_link)
+
+# Run a 3D FP
+cfg = astra.astra_dict('FP3D_CUDA')
+cfg['VolumeDataId'] = vol_id
+cfg['ProjectionDataId'] = proj_id
+alg_id = astra.algorithm.create(cfg)
+astra.algorithm.run(alg_id)
+
+pylab.figure(1)
+pylab.gray()
+pylab.imshow(proj_gpuarr[:, 20, :])
+pylab.show()
+
+astra.algorithm.delete(alg_id)
+astra.data3d.delete(vol_id)
+astra.data3d.delete(proj_id)