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authorWillem Jan Palenstijn <WillemJan.Palenstijn@uantwerpen.be>2013-07-01 22:34:11 +0000
committerwpalenst <WillemJan.Palenstijn@uantwerpen.be>2013-07-01 22:34:11 +0000
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Update version to 1.3
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+%------------------------------------------------------------------------
+% This file is part of the
+% All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA-Toolbox")
+%
+% Copyright: iMinds-Vision Lab, University of Antwerp
+% License: Open Source under GPLv3
+% Contact: mailto:astra@ua.ac.be
+% Website: http://astra.ua.ac.be
+%------------------------------------------------------------------------
+
+% Create a basic 256x256 square volume geometry
+vol_geom = astra_create_vol_geom(256, 256);
+
+% Create a parallel beam geometry with 180 angles between 0 and pi, and
+% 384 detector pixels of width 1.
+% For more details on available geometries, see the online help of the
+% function astra_create_proj_geom .
+proj_geom = astra_create_proj_geom('parallel', 1.0, 384, linspace2(0,pi,180));
+
+% Create a 256x256 phantom image using matlab's built-in phantom() function
+P = phantom(256);
+
+% Create a sinogram using the GPU.
+% Note that the first time the GPU is accessed, there may be a delay
+% of up to 10 seconds for initialization.
+[sinogram_id, sinogram] = astra_create_sino_gpu(P, proj_geom, vol_geom);
+
+figure(1); imshow(P, []);
+figure(2); imshow(sinogram, []);
+
+
+% Free memory
+astra_mex_data2d('delete', sinogram_id);