Inspired by NASA's 'Gradient Sun', this video re-envisions images of a Dallas UFO recorded near the Addison, Texas Airport in October, 2010 by using a gradient filter.
Gradient filters reportedly help scientists to trace light emissions from luminous bodies by intensifying the contrast between foreground and background objects.
A gradient represents a change in value over distance in one direction such as the slope of a curve appearing on a graph.
Source: johnkelly
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