Mathematical Problems in Engineering / 2015 / Article / Fig 12

Research Article

Automatic Side-Scan Sonar Image Enhancement in Curvelet Transform Domain

Figure 12

Mapping curves of enhanced images. Key: green solid line, no-change mapping; cyan solid line, HE; red dash-dotted line, AIE-NSCT; blue solid line, PFBE; black dashed line, the proposed algorithm.
(a) Sand
(b) Plane
(c) River landform
(d) Bridge pier

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