SPy

軟件截圖:
SPy
軟件詳細信息:
版本: 0.17 更新
上傳日期: 10 Dec 15
開發: Thomas Boggs
許可: 免費
人氣: 32

Rating: nan/5 (Total Votes: 0)

SPy has functions for reading, displaying, manipulating, and classifying hyperspectral imagery.

SPy can be used interactively from the Python command prompt or via Python scripts.

The documentation section contains examples on Displaying Data or Spectral Algorithms.

What is new in this release:

  • New Features:
  • Support for parsing & loading spectra from the ASTER Spectral Library.
  • Ability to save ENVI spectral library files.
  • :meth:`spectral.kmeans` will accept a :exc:`KeyboardInterrupt` exception (i.e., CTRL-C) and return the results as of the previous iteration.
  • Documention is now online via Sphinx.
  • Changes:
  • Major changes to module/sub-module layout. Biggest change is that the top-level module is now "spectral" instead of "Spectra" (capitalization). Many functions/classes have moved between files and sub-modules but that should be transparent to most users since the most obvious names are automatically imported into the top-level module namespace.
  • Additional ENVI data file extensions are now searched (.bil, .bsq, .bip,)
  • Changed default colors in :obj:`spectral.spyColors`, which is the default color palette used by :meth:`spectral.viewIndexed`.
  • :meth:`spectral.transformImage` is now the means to apply a linear transform to an image (rather than creating a :class:`spectral.TransformedImage` directly) because it handles both :class:`spectral.SpyFile` and :class:`numpy.ndarray` objects.
  • 64-bit floats are now used for covariance matrices.
  • Changed SPECTRAL_DATA path delimiter from semi-colon to colon.
  • Bug fixes:
  • Fixed a bug preventing successful reading of ENVI header files where an equal ("=") symbol appears in a parameter value.
  • Fixed bug where a ColorScale might return an incorrect color if the scale contained negative values.
  • :meth:`cluster` would fail if only 2 clusters were requested.
  • :meth:`kmeans` was reporting an incorrect number of pixels reassigned between iterations (did not affect final convergence).
  • :meth:`logDeterminant` was crashing when receiving negative values.
  • Missing a potential byte swap in :meth:`spectral.io.bilfileBilFile.readDatum`.

What is new in version 0.16.1:

  • New Features:
  • Support for parsing & loading spectra from the ASTER Spectral Library.
  • Ability to save ENVI spectral library files.
  • :meth:`spectral.kmeans` will accept a :exc:`KeyboardInterrupt` exception (i.e., CTRL-C) and return the results as of the previous iteration.
  • Documention is now online via Sphinx.
  • Changes:
  • Major changes to module/sub-module layout. Biggest change is that the top-level module is now "spectral" instead of "Spectra" (capitalization). Many functions/classes have moved between files and sub-modules but that should be transparent to most users since the most obvious names are automatically imported into the top-level module namespace.
  • Additional ENVI data file extensions are now searched (.bil, .bsq, .bip,)
  • Changed default colors in :obj:`spectral.spyColors`, which is the default color palette used by :meth:`spectral.viewIndexed`.
  • :meth:`spectral.transformImage` is now the means to apply a linear transform to an image (rather than creating a :class:`spectral.TransformedImage` directly) because it handles both :class:`spectral.SpyFile` and :class:`numpy.ndarray` objects.
  • 64-bit floats are now used for covariance matrices.
  • Changed SPECTRAL_DATA path delimiter from semi-colon to colon.
  • Bug fixes:
  • Fixed a bug preventing successful reading of ENVI header files where an equal ("=") symbol appears in a parameter value.
  • Fixed bug where a ColorScale might return an incorrect color if the scale contained negative values.
  • :meth:`cluster` would fail if only 2 clusters were requested.
  • :meth:`kmeans` was reporting an incorrect number of pixels reassigned between iterations (did not affect final convergence).
  • :meth:`logDeterminant` was crashing when receiving negative values.
  • Missing a potential byte swap in :meth:`spectral.io.bilfileBilFile.readDatum`.

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