Galilee Institute

Villetaneuse, France

Galilee Institute

Villetaneuse, France

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Nguyen P.B.,Galilee Institute | Luong M.,Galilee Institute | Beghdadi A.,Galilee Institute
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2010

In this paper, we propose a new statistical approach to investigate the performance of some objective quality metrics used in the literature in order to determine the most suitable quality metric for watermark transparency evaluation. To this end, we have defined a new procedure based on the ANOVA (ANalysis Of VAriance) tests and the subjective performance evaluation. Firstly, a set of selected quality metrics is statistically analyzed by means of ANOVA technique to identify the specific metric that provides the best discrimination to watermarking artifacts. So, the obtained results will answer the question: "which metrics are sensitive to watermarking artifacts?" Secondly, subjective tests were performed and some correlation measures between MOS (Mean Opinion Score) and each quality metric are computed. It is clear that the best quality metric is the one that provides the best consistency with subjective experiments. Results from both objective and subjective investigations were discussed to give some concluding remarks. All conclusions drawn in the paper are supported by extensive experiments in terms of used quality metrics, watermarking algorithms and image database. © 2010 Springer-Verlag .

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