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Communication Dans Un Congrès Année : 2010

Towards a Simplified Perceptual Quality Metric for Watermarking Applications

Résumé

This work is motivated by the limitations of statistical quality metrics to assess the quality of images distorted in distinct frequency range. Common quality metrics, which basically have been designed and tested for various kind of global distortions, such as image coding may not be efficient for watermarking applications, where the distortions might be restricted in a very narrow portion of the frequency spectrum. We hereby want to propose an objective quality metric which performances do not depend on the distortion frequency range, but we nevertheless want to provide a simplified objective quality metric in opposition to the complex HVS based quality metrics recently made available. The proposed algorithm is generic (not designed for a particular distortion), and exploits the contrast sensitivity function (CSF) along with an adapted Minkowski error pooling. The results show a high correlation between the proposed objective metric and the mean opinion score (MOS). A comparison with relevant existing objective quality metrics is provided.
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Dates et versions

hal-00456131 , version 1 (12-02-2010)

Identifiants

  • HAL Id : hal-00456131 , version 1

Citer

Maurizio Carosi, Vinod Pankajakshan, Florent Autrusseau. Towards a Simplified Perceptual Quality Metric for Watermarking Applications. SPIE Electronic Imaging, Jan 2010, San Jose, CA, France. 9 p. ⟨hal-00456131⟩
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