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Changelog (niondata)

15.9.2 (2026-03-19)

  • Python 3.14 compatibility updates.

15.9.1 (2025-09-25)

  • Fix FFT calibration for odd dimensions.

15.9.0 (2025-06-25)

  • Add rectangle mask generation functions.
  • Change behavior to use center of pixel to determine if a pixel is within a mask.

15.8.2 (2025-05-27)

  • Maintenance release to fix a build issue.

15.8.1 (2025-04-23)

  • Ensure element data always returns actual ndarray.

15.8.0 (2025-01-06)

  • Add support for 5d (1/2/2) data in data and metadata objects.

15.7.0 (2024-10-27)

  • Make Calibration hashable.
  • Require Numpy 2. Add Python 3.13 support. Drop Python 3.9, 3.10 support.

15.6.3 (2024-06-12)

  • Restore RPC (remote procedure calls) support to DataAndMetadata.

15.6.2 (2024-01-02)

  • Add power function (xdata.power).
  • Add radial profile function (xdata.radial_profile).
  • Improve handing of invalid inverse coordinates (1/0).
  • Add support for computing the phase of a complex array (thanks Luc J Bourhis).
  • Improve performance (eliminate some unnecessary metadata dict copying)

15.6.1 (2023-10-23)

  • Minor update for typing compatibility.

15.6.0 (2023-08-17)

  • Reapply DataMetadata read-only accessors change.
  • Make read-only accessors to all DataMetadata properties instead of having them be read/write.

0.15.5 (2023-06-21)

  • Revert breaking change: DataMetadata read-only accessors.

0.15.4 (2023-06-19)

  • Introduce rebin_factor xdata function.
  • Carry through intensity calibration during FFT/IFFT.
  • Add copy magic method to data metadata.
  • Make read-only accessors to all DataMetadata properties instead of having them be read/write.
  • Require Python 3.9 or higher.

0.15.3 (2022-10-03)

  • Add is_valid method to calibrations and use when converting to strings.

0.15.2 (2022-09-13)

  • Add low level functions for general multi-dimensional processing.

0.15.1 (2022-07-25)

  • Use scipy.fft for FFT's for better/consistent performance.

0.15.0 (2022-02-28)

  • Add axis_coordinates function to generate coordinate values from calibrated xdata.
  • Simplify data and metadata by eliminating unloading capability (no effect on public API).

0.14.3 (2022-02-18)

  • Fix issue where timezone/timezone_offset could get set to invalid values.
  • Improve Gaussian blur to handle RGB.

0.14.2 (2022-01-03)

  • Improve compatibility with HDF5 backed data (use numpy.copy instead of d.copy).

0.14.1 (2021-12-13)

  • Enable support for Python 3.10.
  • Fix issue for cross correlation using only first image.
  • Fix regression with template register using rounded position.
  • Extend sequence trim/integrate to work on sequences of collections.
  • Fix half-pixel offset in register_template.
  • Allow a mask in register_template for fine-tuning maximum finding.

0.14.0 (2021-11-10)

  • Enable strict typing.
  • Drop support for Python 3.7.
  • Add auto-thresholding functions.

0.13.15 (2021-05-26)

  • Optimize element data for sequence + collection case.
  • Change sub-pixel registration method to parabola fit to improve speed.

0.13.14 (2021-03-12)

  • Add affine transform function and optional order parameter to warp.
  • Allow zero-dimensioned (scalar) data and metadata objects.

0.13.13 (2020-12-08)

  • Make special case of C(1) D(1) < 16 from element data function optional.

0.13.12 (2020-10-06)

  • Fixed RGB issues when data backed by h5py array instead of numpy array.
  • Changed rescale to take a new parameter 'in_range'.
  • Changed rgba/rgb functions to clip data to 0, 255.
  • Split display functions into element and scalar functions.

0.13.11 (2020-08-31)

  • Introduce calibrated coordinates and reference frames (preliminary).
  • Improve handling of NaNs in rebin_1d.
  • Add xdata function rebin_image.
  • Fix issue with bounds when rotating data.
  • Fix issues with concatenate and data descriptor.
  • Add xdata functions to split/join sequences.
  • Add template matching functions to xdata.
  • Make pick functions work for sequences of spectrum images.

0.13.10 (2020-02-26)

  • Change shift/align functions to use spline-1st-order; add Fourier variants as alternative.
  • Fix calibration bug in xdata concatenate (and some cases of hstack, vstack).
  • Add function to generate elliptical masks.
  • Change FFT to put calibration origin at 0.5, 0.5 pixels from center.

0.13.9 (2019-11-27)

  • Improve handling of squeeze/calibration for sequence measurements.
  • Add new navigation properties (combo of is_sequence and collection) to data.
  • Support slicing on RGB sequences (for display data).

0.13.8 (2019-10-24)

  • Added optional registration area bounds to align and register functions.

0.13.7 (2019-02-27)

  • Added mean function. Add keepdim param to mean/sum. Allow negative indices.

0.13.6 (2018-12-28)

  • Fix display RGB calculation on integer images.
  • Add methods for better control of data ref count.

0.13.5 (2018-12-11)

  • Add setters for timezone, timezone_offset, and timestamp.

0.13.4 (2018-11-13)

  • Add measure_relative_translation function to xdata. Utilize in align.
  • Generalize align and register sequence to accept any combo of sequence and collection dimensions.
  • Provide more descriptive data dimensions string.

0.13.3 (2018-06-15)

  • Fix squeeze to not remove last datum dimension.
  • Add re-dimension function (changes data description, keeps data layout in memory the same).
  • Ensure that data_descriptor is a copy, not a reference, when accessed from DataAndMetadata.
  • Add calibration and data_descriptor creation methods to xdata_1_0.
  • Change crop to always produce the same size crop, even if out of bounds. Fill out of bounds with zero.
  • Add crop_rotated to handle crop with rotation (slower).

0.13.2 (2018-05-23)

  • Automatically promote ndarray and constants (where possible) to xdata in operations.
  • Fix FFT-1D scaling and shifting inconsistency.
  • Add average_region function (similar to sum_region).

0.13.1 (2018-05-21)

  • Fix timezone bug.

0.13.0 (2018-05-10)

  • Initial version online.