v0.9.1

ASPIRE v0.9.1 is a patch release.

This release adds the following new features:

• crop_pad_2d() in aspire.utils.coor_trans

Bug fixes:

• Some images appeared flipped by 180 degrees in Reddy Chatterji image registration.
• Basis objects did not stop the user from expanding images that did not match the size of the basis.
• ArrayImageSource should have integer filter indices.

Code cleanup:

• Basis objects can be instantiated with an integer instead of a tuple when creating square or cubic bases.
• More descriptive commenting and docstrings added to Bessel function zero-finding code.
• Testing for Downsampling and Fourier-Bessel 2D basis that used to depend on hardcoded results and output files now instead test expected mathematical properties.
• Improvements to the gallery section of the documentation page include grammar fixes, updates to the author page, and a consistent color map for all images in experiment demonstrations.