The ASTRA Tomography Toolbox ships with a number of sample scripts in the samples directory.
They cover the following topics:
s001_sinogram_par2d
Creating a sinogram from a 2D phantom
s002_data2d
Manipulating 2D data objects
s003_gpu_reconstruction
Performing a 2D GPU reconstruction
s004_cpu_reconstruction
Performing a 2D CPU reconstruction
s005_3d_geometry
Constructing 3D geometries
s006_3d_data
Manipulating 3D data objects
s007_3d_reconstruction
Creating projection data from a 3D phantom and performing a 3D GPU reconstruction
s008_gpu_selection
Selecting a GPU to use in multi-GPU systems
s009_projection_matrix
Obtaining an explicit projection matrix from a 2D geometry
s010_supersampling
Enabling supersampling for cases where volume and detector pixels have very different sizes
s011_object_info
Obtaining information on allocated ASTRA objects and memory
s012_masks
Performing a reconstruction in a non-rectangular region
s013_constraints
Performing a reconstruction with constraints on the grey values
s014_FBP
Performing a 2D GPU FBP reconstruction
s015_fp_bp
Using the ASTRA FP and BP as a function handle for MATLAB's lsqr function
s016_plots
Getting intermediate results from a SIRT reconstruction
