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Ticket #86 (closed enhancement: moved)

Opened 2007-03-23T13:48:18-05:00

Last modified 2014-01-09T13:38:53-06:00

Implement spectral projection feature

Reported by: curtis Owned by: nor
Priority: minor Milestone:
Component: slim-plotter Severity: serious
Keywords: Cc:
Blocked By: Blocking:

Description (last modified by curtis)

Long Yan devised a "spectral projection" technique that produces interesting pictures of multi-spectral data. First, linearly map each channel into a position along the visible spectrum (similar to hue), with the first channels being closer to the red side, and the last channels being closer to the violet side. For each pixel, find the channel with the maximum intensity value. Then colorize the pixel in HSV space according to the mapped hue, with a saturation of 1 and a value equal to the intensity value (so dimmer pixels show up as darker versions of that hue). The final result provides a representation of which channels were dominant around particular areas of the image.

In Slim Plotter, the algorithm could be toggled for the intensity pane (2D display) with a checkbox.

Change History

comment:1 Changed 2007-10-09T12:43:43-05:00 by curtis

  • Owner changed from curtis to nor

comment:2 Changed 2014-01-09T13:38:53-06:00 by curtis

  • Status changed from new to closed
  • Resolution set to moved
  • Description modified
  • Severity set to serious