Fig. 1From: Hybrid image of three contentsOur proposed algorithm. Source image for MF image: “Maximum Mini,”© 2009 by Christian Senger, used under a Creative Commons Attribution license: [21], and source image for LF image: “Tigger”© 2008 by Jacob Enos, used under a Creative Commons Attribution-ShareAlike license: [22]. HF: High frequency; MF: Middle frequency; LF: Low frequency; GDC: Gradient Domain image range Compression; DE: Detail enhancement; GHPF: Gaussian high pass filtering; GBPF: Gaussian band pass filteringBack to article page