Version 2.0.2

Bug fix:

Very similar triangles made from very near stars may cause multiple correspondences between stars.

• Added a purge where only the best correspondence (min trasnsf error) is kept.
• Added test for this specific case.

Version 2.0.1

Bug fix:

• Images with small number of sources < 5 would not work with find_transform and register. (see #36)

This only tests the case when source and target are input as a list of (x, y) positions (as opposed to the image array).

Separate cases for 3, 4, 5, and 6 sources.

Note: Even though this version may still work with Python 2.7, this version drops support for testing Python < 3.

Version 2.0

Version 2.0

What's new

• register now accepts as input images Astropy's NDData objects (this includes the CCDProc's CCDData subclass) as well as Numpy's ndarray.

• register returns a footprint boolean image, True for masked pixels with no information.

registered_image, footprint = aa.register(source, target)

• New fill_value parameter: convenience argument to fill out untouched areas on the registered image.

registered_image, footprint = aa.register(source, target, fill_value=-99999.99)

• For data objects like NDData or Numpy masked arrays, register now propagates the mask if any.

Note:
This version drops support for the deprecated functions align_image and find_affine_transform.

More information and examples in the documentation.

Release Candidate 1 for Version 2.0

Version 2.0 will return the footprint of the transformation, and deal with data objects with masks (CCDData, Numpy masked arrays, NDData) in a more consistent way.

Version 1.0.4

Minor Fixes

Version 1.0.3

Release Notes

• Improved tests

Version 1.0.2

Release notes

• Removed unused astropy dependency.
• Fixed issue #20 in which skimage raises error if image is of type f4 ('float32').
• Added docs for estimate_transform and matrix_transform.
• Added more tests.
• Bug fixes.

Version 1.0.1

Release Notes

• Added Python 3 compatibility

Version 1.0

Release Notes

• New API: find_transform, apply_transform and register.
• find_affine_transform and align_image are deprecated now and will be dropped in the future.
• Updated documentation

Devel Revision for Version 1.0

New on this version

• API Change.
• Better conf.py for docs.
• More documentation.
• Broke align_image in apply_transform for finer control.
• Better tests.
• Change inputs as source and target, instead of ref and test
• Return the whole SimilarityTransform object for more control.
• Included sep as dependency (not optional) and removed in-house source detection.
• Removed scipy interpolation and used scikit-image warp instead.
• Changed return of get_transform to include the list of inliers.
• Hid some functions and imported modules.
• Removed the invariant map class, and turned it into functions.