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This paper proposes a new approach to label-equivalence-based two-scan connected-component labeling. We use two strategies to reduce repeated checking-pixel work for labeling. The first is that instead of scanning image lines one by one and processing pixels one by one as in most conventional two-scan labeling algorithms, we scan image lines alternate lines, and process pixels two by two. The second...
Although hexagonal images have attracted many attentions, there is almost no report on connected-component labeling algorithm for binary hexagonal images. This paper studies this problem for the first time and presents a fast connected-component labeling algorithm for binary hexagonal images. We analyze the connectivity of two different type foreground pixels with their processed pixels when an image...
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