Mobile Multimedia Communications. 7th International ICST Conference, MOBIMEDIA 2011, Cagliari, Italy, September 5-7, 2011, Revised Selected Papers

Research Article

Objective Evaluation of WebP Image Compression Efficiency

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  • @INPROCEEDINGS{10.1007/978-3-642-30419-4_22,
        author={Maurizio Pintus and Giaime Ginesu and Luigi Atzori and Daniele Giusto},
        title={Objective Evaluation of WebP Image Compression Efficiency},
        proceedings={Mobile Multimedia Communications. 7th International ICST Conference, MOBIMEDIA 2011, Cagliari, Italy, September 5-7, 2011, Revised Selected Papers},
        proceedings_a={MOBIMEDIA},
        year={2012},
        month={5},
        keywords={Image compression lossy coding codec assessment},
        doi={10.1007/978-3-642-30419-4_22}
    }
    
  • Maurizio Pintus
    Giaime Ginesu
    Luigi Atzori
    Daniele Giusto
    Year: 2012
    Objective Evaluation of WebP Image Compression Efficiency
    MOBIMEDIA
    Springer
    DOI: 10.1007/978-3-642-30419-4_22
Maurizio Pintus1,*, Giaime Ginesu1,*, Luigi Atzori1,*, Daniele Giusto1,*
  • 1: University of Cagliari
*Contact email: m.pintus@gmail.com, g.ginesu@diee.unica.it, l.atzori@diee.unica.it, ddgiusto@unica.it

Abstract

Performances of multimedia coding techniques are still improving in terms of compression ratio, coding features, and robustness against errors even if at a slower pace with respect to what we were used to up a decade ago. One of the latest codec which is expected to improve on the state of the art is the WebP algorithm released by Google. With the intent to evaluate the extent of this improvement, in this paper we provide an objective evaluation of the compression efficiency of WebP, by comparing it with alternative algorithms. From the results it appears that the performance of the proposed codec is in line with that of the alternative methods, without achieving any major improvement and lacking several features.