Ticket #86 (closed enhancement: moved)

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.