Real data supporting HTTomolib/GPU libraries

This is an archive containing real data for testing methods of HTTomoLib and HTTomoLibGPU packages. Also see Python scripts and images. Data description: I12 Beamline data Dataset file Information Data charachteristics Notes i12_dataset1.npz (119647.nxs) 180-degrees scan of a sandstone rock Data dimensions [1801, 50, 2560] as [angles, detY, detX], flats [50, 50, 2560] and darks are [20, 50, 2560]. Data type is uint16. The resolution of the sample is well-defined and the sample is fully within the field of view (FOV). This provides some freedom for experimentation using various preprocesing and reconstruction methods. i12_dataset2.npz (146344.nxs) 180-degrees scan Data dimensions [2050, 50, 2560] as [angles, detY, detX], flats and darks are [51, 50, 2560]. Data type is uint16. The sample is larger than FoV and noisy. VoCentering method to find the centre of rotation can be tested on this data. i12_dataset3.npz (119647.nxs) 180-degrees scan of a sandstone rock projections, darks and flats are [2050, 2560] as [detY, detX]. Data type is uint16. This data is to test the centering method based on phase cross-correlation I13 Beamline data Dataset file Information Data charachteristics Notes i13_dataset1.npz (179623.nxs) 360-degrees scan of some biological sample Projection data dimensions [6001, 10, 2560] as [angles, detY, detX], flats [40, 10, 2560] and darks are [40, 10, 2560]. Data type is uint16. This is a 360-degrees scan than needs to be converted into traditional 180-degrees data. The resulting data doubles the FoV, i.e., it is at least twice as larger (detX size) as the original data. i13_dataset2.npz (179468.nxs) 180-degrees scan of some biological sample. Projection data dimensions [2501, 10, 2560] as [angles, detY, detX], flats [40, 10, 2560] and darks are [40, 10, 2560]. Data type is uint16. A well defined resolution for this biological sample. K11 Beamline data Dataset file Information Data charachteristics Notes k11_dataset1.npz (k11-37101) 180-degrees scan of some soil/rock sample. Projection data dimensions [4001, 10, 2560] as [angles, detY, detX], flats [100, 10, 2560] and darks are [100, 10, 2560]. Data type is uint16. The sample is within FOV. Simulated data Dataset file Information Data charachteristics Notes geant4_dataset1.npz Geant4 simulated tomographic dataset in 180-degrees parallel-beam. Data dimensions [360, 540, 640] as [angles, detY, detX], flats and darks are [20, 50, 2560]. Data type is uint16. The data is perfectly centered and within FOV. Various reconstruction methods can be tested, direct and iterative.