dtcwt 0.14.0

Ubuntu 15.10 (wily) and later

Installation can be perfomed via apt-get:

$ sudo apt-get install python-dtcwt python-dtcwt-doc

The package is also currently in Debian sid (unstable).

Other operating systems

The easiest way to install dtcwt is via easy_install or pip:

$ pip install dtcwt

If you want to check out the latest in-development version, look at the project’s GitHub page. Once checked out, installation is based on setuptools and follows the usual conventions for a Python project:

$ python setup.py install

(Although the develop command may be more useful if you intend to perform any significant modification to the library.) A test suite is provided so that you may verify the code works on your system:

$ pip install -r tests/requirements.txt
$ py.test

This will also write test-coverage information to the cover/ directory.

0.14.0

• Add support for NumPy 2.0.

0.13.0

• Add support for NumPy 1.20+ (and thus Python 3.7+).

0.12.0

• TensorFlow backend by Fergal Cotter (@fbcotter).

0.11.0

• Use fixed random number generator seed when generating documentation.

• Replace use of Lena image with mandrill.

• Refactor test suite to use tox + py.test.

• Documentation formatting fixes.

• Fix unsafe use of inplace casting (3D transform).

• Use explicit integer division to close #123.

0.10.1

• Fix regression in dtcwt-based image registration.

• Allow levels used for dtcwt-based image registration to be customised.

0.10.0

• Add queue parameter to low-level OpenCL colifilt and coldfilt functions.

• Significantly increase speed of dtcwt.registration.estimatereg function.

• Fix bug whereby dtcwt.backend_name was not restored when using preserve_backend_stack.

0.9.1

• The OpenCL 2D transform was not always using the correct queue when one was passed explicitly.

0.9.0

• MATLAB-style functions such as dtwavexfm2 have been moved into a separate dtcwt.compat module.

• Backends moved to dtcwt.numpy and dtcwt.opencl modules.

• Removed dtcwt.base.ReconstructedSignal which was a needless wrapper around NumPy arrays.

• Rename TransformDomainSignal to Pyramid.

• Allow runtime configuration of default backend via dtcwt.push_backend function.

• Verified, thanks to @timseries, the NumPy 3D transform implementation against the MATLAB reference implementation.

0.8.0

• Verified the highpass re-sampling routines in dtcwt.sampling against the existing MATLAB implementation.

• Added experimental image registration routines.

• Re-organised documentation.

0.7.2

• Fixed regression from 0.7 where backend_opencl.dtwavexfm2 would return None, None, None.

0.7.1

• Fix a memory leak in OpenCL implementation where transform results were never de-allocated.