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CHANGELOG.md

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    • Dropped support for Python 3.6 and NumPy 1.15
    • Jenkins PR tests on Python 3.8 and NumPy 1.20
    • added yml file to create test environment
    • LeastSquares fixed docstring and unified gradient code when out is passed or not.
    • Add compression to 8bit and 16bit to TIFFWriter
    • Added convenience centre of rotation methods to AcquisitionGeometry class.
      • get_centre_of_rotation() calculates the centre of rotation of the system
      • set_centre_of_rotation() sets the system centre of rotation with an offset and angle
      • set_centre_of_rotation_by_slice() sets the system centre of rotation with offsets from two slices
    • Binner processor reworked:
      • Significant speed increase available via the C++ backend
      • Returned geometry is correctly offset where binning/cropping moves the origin
    • Github Actions:
      • update test python and numpy versions to 3.9 and 1.22
      • Update conda build action to v2.0.0
      • Fixes actions to run on ubuntu-20.04
      • Update version of upload_artifact github action to version 3.1.1
      • Update version of download_artifact github action to version 3.0.1
      • Update version of checkout github action to version 3.1.0
      • Update build-sphinx action to version 0.1.3
    • io.utilities.HDF5_utilities Added utility functions to browse hdf5 files and read datasets into numpy array
    • Implemented the analytical norm for GradientOperator
    • Added ImageData.apply_circular_mask method to mask out detector edge artefacts on reconstructed volumes

  • 22.1.0

    • use assert_allclose in test_DataContainer
    • added multiple colormaps to show2D
    • Fix segfault in GradientOperator due to parameter overflows on windows systems
    • Fix angle display precision and matplotlib warning for sinograms with show2D

  • 22.0.0

    • Strongly convex functionality in TotalVariation and FGP_TV Functions
    • Refactored KullbackLeibler function class. Fix bug on gradient method for SIRF objects
    • Numba added as a CIL requirement
    • Simplify initialisation of CentreOfRotation.ImageSharpness with new parameter backend
    • Added ISTA algorithm. Improve inheritance of proximal gradient algorithms
    • Updated interface to plugins.tigre/plugins.astra FBP and ProjectionOperator classes
    • Update NikonDataReader to parse and set up geometry with: ObjectTilt CentreOfRotationTop and CentreOfRotationBottom
    • Cleaned up unit test structure and output
    • Removal of deprecated code:
      • AcquisitionGeometry __init__ no longer returns a configured geometry, use factory create methods instead
      • subset method removed, use get_slice or reorder methods
      • NikonDataReader normalize kwarg removed, use normalise
      • Algorithms initialisation x_init kwarg removed, use initial
      • Removed deprecated numpy calls
    • DataProcessors use weak-reference to input data
    • Merged CIL-ASTRA code in to CIL repository simplifying test, build and install procedures
      • Modules not moved should be considered deprecated
      • CIL remains licensed as APACHE-2.0
      • Minor bug fixes to the CPU 2D Parallel-beam FBP
    • Add ndim property for DataContainer class
    • Fixes show_geometry compatibility issue with matplotlib 3.5
    • Added ZEISSDataReader with cone/parallel beam, slicing, TXM Functionality
    • Raise exception if filename or data haven't been set in NexusDataWriter
    • Fixes error when update_objective_interval is set to 0 in an algorithm run
    • Deprecated:
      • TXRMDataReader is deprecated in favour of ZEISSDataReader
    • GitHub Actions:
      • Update to version 0.1.1 of lauramurgatroyd/build-sphinx-action for building the documentation - ensures docs are always built from cil master

  • 21.4.1

  • Removed prints from unittests and cleanup of unittest code.
  • CMake:
    • install script re-allows selection of non default install directory (#1246)
  • TIFF writer uses logging
  • Added unittests for TIFF functionality

  • 21.4.0

    • PEP 440 compliant version
    • CMake fix due to use of pip install.
    • Recon.FBP allows 'astra' backend
    • Fixed PowerMethod for square/non-square, complex/float matrices with stopping criterion.
    • CofR image_sharpness improved for large datasets
    • Geometry alignmentment fix for 2D datasets
    • CGLS update for sapyb to enable complex data, bugfix in use of initial
    • added sapyb and deprecated axpby. All algorithm updated to use sapyb.
    • Allow use of square brackets in file paths to TIFF and Nikon datasets

  • 21.3.1

    • Added matplotlib version dependency to conda recipe
    • Fixed TIGRE wrappers for geometry with a virtual detector
    • Fixed TIGRE wrappers for cone-beam geometry with tilted rotation axis

  • 21.3.0

    • Accelerated PDHG which handles strong convexity of functions
    • TotalVariation Function handles SIRF ImageData
    • Simulated datasets and volume added to DataExamples
    • TIGRE wrappers for parallel-beam geometry added
    • NEXUSWriter and NEXUSReader offer (8bit and 16bit) compression of data
    • show2D show_geom now return an object that can be saved with a save method
    • GradientOperator can be now used with SIRF DataContainers, both PET and MR
    • Add anisotropy in TotalVariation function
    • CCPi Regularisation plugin is refactored, only FGP_TV, FGP_dTV, TGV and TNV are exposed. Docstrings and functionality unit tests are added. Tests of the functions are meant to be in the CCPi-Regularisation toolkit itself.
    • Add dtype for ImageGeometry, AcquisitionGeometry, VectorGeometry, BlockGeometry
    • Fix GradientOperator to handle pseudo 2D CIL geometries
    • Created recon module with FBP and FDK using fast filtering library and TIGRE backprojectors
    • Added Intel IPP based library for filtering step of FBP
    • PDHG memory optimisation
    • ScaledFunction memory Optimisation
    • The github actions are merged into one action with multiple jobs
    • The conda build job uploads an artifact of the build tar.bz file which is later used by the documentation build job - which installs the package into a miniconda environment.
    • Documentation pages for recon, astra and cil-plugins are published.

  • 21.2.0

    • add version string from git describe
    • add CCPi-Regularisation toolkit in unittests
    • show_geometry implemented to display AcquisitionGeometry objects, can be imported from utilities.display
    • CentreOfRotationCorrector.image_sharpness implemented which finds the rotation axis offset by maximising sharpness of a single slice reconstruction
    • Renamed CentreOfRotationCorrector.xcorr to CentreOfRotationCorrector.xcorrelation
    • Implemented Padder processor

  • 21.1.0

    • Added TomoPhantom plugin to create 2D/3D + channel ImageData phantoms based on the TomoPhantom model library
    • Fixed bug in Zeiss reader geometry direction of rotation

  • 21.0.0

    • Show2D now takes 4D datasets and slice infomation as input
    • TIGRE reconstruction package wrapped for cone-beam tomography
    • Datacontainers have get_slice method which returns a dataset with a single slice of the data
    • Datacontainers have reorder method which reorders the data in memory as requested, or for use with 'astra' or 'tigre'
    • Subset method has been deprecated
    • AcquisitionData and ImageData enforce requirement for a geometry on creation
    • New processors AbsorptionTransmissionConverter and TransmissionAbsorptionConverter to convert between Absorption and Transmission
    • Implemented Binner and Slicer processors
    • Implemented MaskGenerator and Masker processors

  • 20.11.2

    • fixed windows build
    • NikonDataReader converts Nikon geometry to CIL geometry from xtekct file including detector and centre-or-rotation offsets
    • NexusdataReader supports files written with old versions of NexusDataWriter

  • 20.11

    • python module renamed to cil
    • renamed Identity->IdentityOperator, Gradient->GradientOperator, SymmetrisedGradient->SymmetrisedGradientOperator

  • 20.09.1

    • FiniteDifferenceOperator takes into consideration voxel size
    • Added CentreOfRotationCorrector
    • Removed CenterOfRotationFinder
    • moved TestData to utilities and renamed as dataexample
    • verbosity of Algorithms is independent of the update_objective_interval
    • added unittests
    • renamed
      • GradientDescent to GD
      • SparseFiniteDiff to SparseFiniteDifferenceOperator
      • LinearOperatorMatrix to MatrixOperator
    • bugfix update_objective of SPDHG

  • 20.09

    • added SPDHG algorithm
    • added TotalVariation function
    • Redesign of the AcquisitionGeometry class allowing more general acquisition trajectories than currently possible.
    • Added ZEISS reader

  • 20.04

    • Significant upgrades to the operator and function classes to allow more flexible definition of optimisation problems
    • Added multithreaded C library for calculation of finite difference and some data processing
    • Added Gradient operator using C library and numpy backends

  • 19.10

    • Improved usability with reader/writers and plotting utilities
    • Substantially improved test coverage

  • 19.07

    • Introduction of BlockFramework
    • major revision and restructuring of the whole code
    • rewritten io package

  • 19.02

    • introduction of Algorithm class
    • unit test expanded and moved to test directory
    • unified build system on Jenkins based on CCPi-VirtualMachine repo
  • switched to calendar versioning YY.0M.

  • 0.10.0

  • 0.9.4

    • Initial release