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Fig. 11 | BioMedical Engineering OnLine

Fig. 11

From: Combining multi-scale composite windows with hierarchical smoothing strategy for fingerprint orientation field computation

Fig. 11

The comparison of OF construction and smoothing I: a original fingerprint image, OF estimated b by the enhanced gradient based method [23], c by the gradient based voting method [22], d by the proposed weighted multi-scale composite window (WMCW), e by EG + hierarchical smoothing, f by GV + hierarchical smoothing, g by the proposed WMCW + hierarchical smoothing

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