Researchers Show Improved Algorithm For Smoothing Upscaled Pixel Art: "
A paper from researchers at Microsoft Research and Hebrew University details a new, spline-based algorithm for transforming pixel art, such as that from early sprite-based games, into scalable vector images. Johannes Kopf and Dani Lischinski's 'Depixelizing Pixel Art' [PDF] describes an upscaling technique that differs from popular methods used by companies like Adobe in ways that are particularly suited for the low-resolution sprites of classic games. For example, the algorithm assumes that pixels in the ...
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