The Super Structure allows you to manipulate the super structures in your image separately from the rest of the image. It is useful to push back busy star fields, or emphasise nebulosity by colour, luminance, or both.
The module brings back 'life' into an image by remodelling uniform light diffraction, helping larger scale structures such as nebulae and galaxies stand out and (re)take center stage; throughout the various processing stages, light diffraction (a subtle 'glow' of very bright objects due diffraction by a circular opening) tends to be distorted and suppressed through the various ways dynamic range is manipulated during processing. This can sometimes leave an image 'flat' and 'lifeless', or exaggerate the harshness of small stars.
The Super Structure module attempts to restore the effects of uniform light diffraction by an optical system, throughout a processed image, as if the image was recorded as-is. It does so by means of modelling an Airy disk pattern and re-calculating what the image would look like if it were diffracted by this pattern. The resulting model is then used to modulate or enhance the source image in various ways. The resulting output image tends to have a re-established natural sense of depth and ambiance (as if looking at it through a telescope with the naked eye) with - if so desired - better visible super structures.
