A method for representation and lossy compression of textured surfaces is presented. The input surfaces are represented by surfels (surface elements), i.e., by a set of colored, o...
Tal Darom, Mauro R. Ruggeri, Dietmar Saupe, Nahum ...
We present the nonsubsampled contourlet transform and its application in image enhancement. The nonsubsampled contourlet transform is built upon nonsubsampled pyramids and nonsubs...
Abstract-- The emergence of digital multimedia and the proliferation of its use have raised major concerns about the protection of intellectual property. In response to these conce...
Most block-based image authentication techniques that are presented in the literature sacrifice localization accuracy in order to resist vector quantization (VQ) counterfeiting att...