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Browsing Departament de Tecnologies de la Informació i les Comunicacions by Author "Zamir, Syed Waqas"

Browsing Departament de Tecnologies de la Informació i les Comunicacions by Author "Zamir, Syed Waqas"

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  • Automatic, fast and perceptually accurate gamut mapping based on vision science models
    Zamir, Syed Waqas; Vazquez-Corral, Javier; Bertalmío, Marcelo (Society of Motion Picture & Television Engineers (SMPTE), 2017)
    Gamut mapping transforms colors of the original (image or video) content to the color palette of the display device with the simultaneous goals of (a) reproducing content accurately while preserving the artistic intent of ...
  • Considering saliency in a perception inspired gamut reduction algorithm
    Vazquez-Corral, Javier; Zamir, Syed Waqas; Bertalmío, Marcelo (S. Hirzel Verlag (SHV), 2014)
    Gamut reduction transforms the colors of an input image within the range of a target device. A good gamut reduction algorithm will preserve the experience felt by the viewer of the original image. Saliency algorithms ...
  • Gamut extension for cinema
    Zamir, Syed Waqas; Vazquez-Corral, Javier; Bertalmío, Marcelo (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    Emerging display technologies are able to produce images with a much wider color gamut than those of conventional distribution gamuts for cinema and TV, creating an opportunity for the development of gamut extension ...
  • Gamut extension for cinema: psychophysical evaluation of the state of the art and a new algorithm
    Zamir, Syed Waqas; Vazquez-Corral, Javier; Bertalmío, Marcelo (Society of Photo Optical Instrumentation Engineers (SPIE), 2015)
    Wide gamut digital display technology, in order to show its full potential in terms of colors, is creating an opportunity to develop gamut extension algorithms (GEAs). To this end, in this work we present two contributions. ...
  • Gamut mapping in cinematography through perceptually-based contrast modification
    Zamir, Syed Waqas; Vazquez-Corral, Javier; Bertalmío, Marcelo (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Gamut mapping transforms the colors of an input/nimage to the colors of a target device so as to exploit the full/npotential of the rendering device in terms of color rendition. In/nthis paper we present spatial gamut ...
  • Gamut mapping through perceptually-based contrast reduction
    Bertalmío, Marcelo; Zamir, Syed Waqas; Vazquez-Corral, Javier (Springer, 2014)
    In this paper we present a spatial gamut mapping algorithm that relies on a perceptually-based variational framework. Our method adapts a well-known image energy functional whose minimization leads to image enhancement ...
  • Gamut reduction through local saturation reduction
    Zamir, Syed Waqas; Vazquez-Corral, Javier; Bertalmío, Marcelo (Society for Imaging Science and Technology, 2017)
  • Image processing applications through a variational perceptually-based color correction related to Retinex
    Vazquez-Corral, Javier; Zamir, Syed Waqas; Galdran, Adrian; Pardo, David; Bertalmío, Marcelo (The Society for Imaging Science and Technology (IS&T), 2016)
    The retinex theory of color vision has been a light of inspiration for color researchers since its inception 50 years ago. It has been adapted to work for different goals such as shadow removal, high dynamic range imaging, ...
  • Perceptually-based gamut extension algorithm for emerging wide color gamut display and projection technologies
    Zamir, Syed Waqas; Vazquez-Corral, Javier; Bertalmío, Marcelo (Society of Motion Picture & Television Engineers (SMPTE), 2016)
    While wide color gamut (WCG) capabilities are a key element of emerging display and projection technologies, at present most image content is recorded using standards such as DCI-P3 for cinema or BT.709 for TV that have a ...
  • Vision models for wide color gamut imaging in cinema
    Zamir, Syed Waqas; Vazquez-Corral, Javier; Bertalmío, Marcelo (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Gamut mapping is the problem of transforming the colors of image or video content so as to fully exploit the color palette ofthe display device where the content will be shown, while preserving the artistic intent of the ...

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