This filter reduces alias effects (see Anti-aliasing) using the Scale3X edge-extrapolation algorithm.
Scale3X is derived from Scale2X, which is a graphics effect to increase the size of small bitmaps guessing the missing pixels without interpolating pixels and blurring the images.[8] Scale2X was originally developed to improve the quality of old Arcade and PC games with a low video resolution played with video hardware like TVs, Arcade monitors, PC monitors and LCD screens.[9]
Kenar yumuşatma süzgeci aşağıdaki gibi çalışır:
Her piksel için,
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the filter expands the original pixel in 9 (3×3) new pixels according to the Scale3X algorithm, using the colors of the pixel and its 8 adjacent pixels (extrapolation);
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then the filter subsamples the new pixels to a weighted average pixel.
Aşağıdaki örnekler kimi desenler üzerindeki etkiyi göstermektedir. Küçük kareler bir piksel boyutundadır (yakınlaştırma 16:1).
Özgün görüntü (yakınlaştırma 16:1)
“Kenar Yumuşatma” uygulandı (yakınlaştırma 16:1)
