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. 2020 Jan 10;15(1):e0226345. doi: 10.1371/journal.pone.0226345

Fig 4. The image Birds: (a) original image, (b, c) initial segmented result and result after region merging based on the histon, (d, e) initial segmented result and result after region merging based on the roughness index, (f, g) initial segmented result and result after region merging based on AHHT.

Fig 4