Nonetheless, a map of all image boundaries has also been realized, allowing researchers to accurately trace every pixel of the mosaic to its original parent image. Dickson adds that the processing is nondestructive and doesn’t involve blurring lines. Overlapping images were blended “by calculating a path of least contrast” between two images and “joining them together like jigsaw puzzle pieces,” Caltech says. Dickson and his colleagues used an algorithm that identified features of Mars’s surface to align all the images.
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