Browsing NTNU Open by Author "Rizzi, Alessandro"

Now showing items 1-4 of 4

    • Measuring perceptual contrast in a multilevel framework 

      Simone, Gabriele; Pedersen, Marius; Hardeberg, Jon Yngve; Rizzi, Alessandro (Proceedings of SPIE;7240, Journal article; Peer reviewed, 2009)
      In this paper, we propose and discuss some approaches for measuring perceptual contrast in digital images. We start from previous algorithms by implementing different local measures of contrast and a parameterized way to ...

    • Spatio-Temporal Retinex-Inspired Envelope with Stochastic Sampling: A Framework for Spatial Color Algorithms 

      Kolås, Øyvind; Farup, Ivar; Rizzi, Alessandro (Journal article; Peer reviewed, 2011)
      The authors present a new framework for algorithms for a wide range of image enhancement and reproduction applications, named STRESS Spatio-Temporal Retinex-inspired Envelope with Stochastic Sampling. The algorithms work ...

    • Termite retinex: A new implementation based on a colony of intelligent agents 

      Simone, Gabriele; Audino, Giuseppe; Farup, Ivar; Albregtsen, Fritz; Rizzi, Alessandro (Journal article; Peer reviewed, 2014)
      Abstract. The original presentation of Retinex, a spatial color correction and image enhancement algorithm modeling the human vision system, as proposed by Land and McCann in 1964, uses paths to explore the image in search ...

    • Termites: a Retinex implementation based on a colony of agents 

      Simone, Gabriele; Audino, Giuseppe; Farup, Ivar; Rizzi, Alessandro (Journal article; Peer reviewed, 2012)
      This paper describes a novel implementation of the Retinex algorithm with the exploration of the image done by an ant swarm. In this case the purpose of the ant colony is not the optimization of some constraints but is ...