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SummaryCollection of algorithms for perform hyper-spectral and multi-spectral analysis.
LicenseLGPL
PriceFree
AuthorThe Opticks Team
WebsiteOpticks Extras
Latest Version1.9.0
Updated On2014-09-26
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1.9.0 - Sept 26, 2014 Release Notes
Full Support: 32-bit 64-bit

Limited Support: 64-bit

1.8.0 - April 02, 2013 Release Notes
Full Support: 32-bit 64-bit 64-bit

Limited Support: 64-bit

1.7.0 - October 16, 2012 Release Notes
Full Support: 32-bit 64-bit 64-bit

Limited Support: 64-bit

1.6.0 - May 11, 2012 Release Notes
Full Support: 32-bit 64-bit 64-bit

Limited Support: 64-bit

1.5.0 - January 20, 2012 Release Notes
Full Support: 32-bit 64-bit 64-bit

Limited Support: 64-bit

1.4.1 - September 21, 2011 Release Notes

Full Support: 32-bit 64-bit 64-bit

Limited Support: 64-bit

1.3.0 - March 21, 2011 Release Notes
Full Support: 32-bit 64-bit 64-bit

Limited Support: 64-bit

1.2.0 - November 30, 2011 Release Notes
Full Support: 32-bit 64-bit 64-bit

Limited Support: 64-bit

1.1.1 - September 28, 2010 Release Notes

Full Support: 32-bit 64-bit 64-bit

Summary

This extension includes the following Spectral processing capabilities which can be used to perform hyper-spectral and multi-spectral analysis with Opticks:

  • An importer to load Landsat TM and Landsat ETM+ files into Opticks.
  • An importer to load signatures from the ASTER Spectral Library.
  • The following algorithms to convert an image from radiance to reflectance: Empirical Line Method (ELM) and Internal Average Relative Reflectance (IARR).
  • The following algorithms to find signatures matches in an images: Spectral Angle Mapper (SAM) and Constrained Energy Minimization (CEM).
  • A specialized "Signature Window" plot to display and manipulate signatures including the ability to generate signatures from a scene (either a single pixel or a user created Area of Interest).
  • A specialized "Range Profile" plot to display and then manipulate signatures in order to better align them.
  • A number of methods to resample a signature to match the wavelengths of an image before applying a signature matching algorithm.
  • The capability to build libraries of many signatures which can then be exported to an ENVI Signature Library file.
  • Some additional importers and exporters for both individual signatures and signature sets.
  • The Minimum Noise Fraction Algorithm (MNF) in order to preprocess an image and remove extraneous noise in order to improve later signature matching algorithms.
  • An NDVI (Normalized Difference Vegetation Index) algorithm to calculate the NDVI results for a hyper-spectral or multi-spectral image.
  • A Spectral Library Match tool which provides the capabilities: (EXTRAS-109)
  • Find the best spectral library matches for a user selected pixel.
  • Find the best spectral library matches for each pixel within an AOI.
  • Find the best spectral library matches for the average signature of an AOI.
  • Display plots of a selected pixel signature and the best library matches.
  • Display a list of the best library matches in descending order of the quality of match.
  • Locate pixels in the spatial data view for selected library signatures in the displayed list of matches.
  • Generate an average signature from selected library signatures in the displayed list of matches.
  • Edit contents of the spectral library used for matching.
  • An Rx anomaly detection algorithm that supports global and local statistics and uses the covariance method for calculation of the Rx values.
  • A Spatial/Spectral plotting capability where the user may create one or more row, column, hline, or vline AOI objects and create a spatial profile plot of one or more bands. Additionally, a user may select a point and create row and column profile plots for that location.

 

Supported Opticks Releases: 

4.12.X
4.11.X
4.10.X
4.9.X
4.8.X
4.7.X
4.6.X
4.5.X
4.4.X
4.3.X
4.2.X

Supported Operating Systems: 

Windows 32-bit
Windows 64-bit
Solaris SPARC 64-bit
Linux 64-bit

Support Requests: Community Supported. File bug reports/enhancements/new features info the Opticks Extras project.

How do I get started with Spectral?
  1. Download and install this extension. Learn how to install Opticks extensions.
  2. Display the "Spectral" toolbar if it isn't already being displayed. You can do this either using the "Session Explorer" docked window or the "View->Toolbars" menu on the main menu.
  3. Look under the "Spectral" toolbar for all of the above mentioned processing algorithms.
  4. In general for these algorithms to be beneficial you will need to load hyper-spectral or multi-spectral data and specifically this data should have "Wavelength" information associated with each band. After you load an image, you can go the "Elements" tab of the "Session Explorer" docked window and right-click on the loaded image and select "Properties". On the "Wavelengths" tab, you should be see values for one or more of the following: "Start", "Center", "End".

Roadmap

Spectral Processing Extension 1.9.0

Scheduled Release Date: Spring 2014

This will be a new major release. This release will work with the upcoming 4.12.X releases of Opticks.

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Spectral Processing SDK Downloads

This extension includes its own SDK that provides static libraries with some utility functions. This can be useful for other extensions to use that wish to leverage some common spectral processing code.

 

 

1.1.1

Windows SDK

Solaris SDK

Linux not available for 1.1.1, use 1.1.0

1.1.0

Linux SDK