Now showing items 1-3 of 3

    • Novel methods in image halftoning 

      Bozkurt, Gözde (Bilkent University, 1998)
      Halftoning refers to the problem of rendering continuous-tone (contone) images on display and printing devices which are capable of reproducing only a limited number of colors. A new adaptive halftoning method using the ...
    • An online adaptive cooperation scheme for spectrum sensing based on a second-order statistical method 

      Yarkan S.; Töreyin, B. U.; Qaraqe, K. A.; Çetin, A. Enis (Institute of Electrical and Electronics Engineers, 2012)
      Spectrum sensing is one of the most important features of cognitive radio (CR) systems. Although spectrum sensing can be performed by a single CR, it is shown in the literature that cooperative techniques, including multiple ...
    • Restoration of error-diffused images using projection onto convex sets 

      Unal G.B.; Çetin, A.E. (2001)
      In this paper, a novel inverse halftoning method is proposed to restore a continuous tone image from a given half-tone image. A set theoretic formulation is used where three sets are defined using the prior information ...