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@@ -112,7 +112,7 @@ requirements and error diffusion remains a widely used technique. |
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\section{Error diffusion displacement} |
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Most error diffusion implementations parse the image in raster scan order. |
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Boustrophedonic (serpentine) scan has been shown to cause fewer visual |
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Boustrophedonic (serpentine) scanning has been shown to cause fewer visual |
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artifacts \cite{halftoning}, but other, more complex processing paths such as |
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Hilbert curves \cite{spacefilling}, \cite{peano} are seldom used as they do not |
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improve the image quality significantly. |
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