Short Description

This plugin provides a convenient interface to measure and compare the differences between a reference sequence and several tested sequences. The user can chose among several the distance measure, such as mean square error, L1, maximum pixelwise, PSNR, SSIM, etc.

Documentation

Sequence comparator screenshotThis plugin provides a convenient interface to measure and compare the differences between a reference sequence and several tested sequences. The user can visualize:

  • overall error measures, computed over either the whole or a sub-part of the compared sequences,
  • error map, indicating the points where the compared sequences differs.

For overall error measures, the user can chose the distance measure among:

  • L1 distance,
  • L2 distance,
  • maximum pixelwise (also known as L-infinite distance),
  • mean square error and root mean square error (the latter being equal to the L2 distance, up to a normalization factor),
  • peak signal to noise ratio (PSNR),
  • structural similarity index (SSIM).

The user can also choose how the error map are computed among the following modes:

  • absolute difference,
  • difference,
  • SSIM map.

These features are also available within the protocol framework provided by the Blocks plugin.

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Changelog

  • Version 3.4.0.0 • Released on: 2013-04-22 13:16:55
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    Description:

    Fix compatibility issues with the SSIM plugin and display the numerical overall error in the Sequence Comparator main frame.

  • Version 3.3.1.0 • Released on: 2013-03-08 15:33:28
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    Description:

    Fix: missing parse functions in VarGlobal/LocalComparator

  • Version 3.3.0.0 • Released on: 2013-02-07 15:55:59
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    Description:

    Add: PSNR error measure

  • Version 3.2.0.0 • Released on: 2013-01-28 16:27:31
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    Description:

    Simplification: remove ErrorMeasureBlock and ErrorMeasuresBlock => error measure results can now be visualized in a usual Display block
    Fix: no such method bug with IcyCanvas.setSyncId(int)

  • Version 3.1.3.0 • Released on: 2012-08-16 14:06:16
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    Description:

    Fix: compatibility issue with SSIM plugin

  • Version 3.1.2.0 • Released on: 2012-08-03 15:23:30
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    Description:

    Fix: VarEditor becomes SwingVarEditor

  • Version 3.1.1.0 • Released on: 2012-07-10 11:37:20
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    Description:

    Fix: begin/endUpdate when allocating a sequence

  • Version 3.1.0.0 • Released on: 2012-06-21 16:19:16
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    Description:

    Add: support for Blocks

  • Version 3.0.0.0 • Released on: 2012-06-21 15:55:00
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    Description:

    Recover the previous 'Sequence comparator' plugin, that had to be deleted due to a classpath modification.

  • Version 0.0.1.0 • Released on: 2012-06-21 15:52:25
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