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Spinoff story
Technique for Manipulating Satellite Photos Now Reveals Ancient Images
A real-world story of NASA technology finding a life beyond the mission.
About this technology
Overview
Rock art enthusiast Jon Harman of Pacifica, California, created the Dstretch software plug-in to enhance digital imagery, based on the decorrelation stretch technique invented at the Jet Propulsion Laboratory. Dstretch is now widely used to make ancient, faded markings visible in photographs, among other applications.