Quaternion wavelet transform based full reference image quality assessment for multiply distorted images

Chaofeng Li, Yifan Li, Yunhao Yuan, Xiaojun Wu, Qingbing Sang, Yuanquan Wang
2018 PLoS ONE  
Most of real-world image distortions are multiply distortion rather than single distortion. To address this issue, in this paper we propose a quaternion wavelet transform (QWT) based full reference image quality assessment (FR IQA) metric for multiply distorted images, which jointly considers the local similarity of phase and magnitude of each subband via QWT. Firstly, the reference images and distorted images are decomposed by QWT, and then the similarity of amplitude and phase are calculated
more » ... n each subband, thirdly the IQA metric is constructed by the weighting method considering human visual system (HVS) characteristics, and lastly the scores of each subband are averaged to get the quality score of test image. Experimental results show that the proposed method outperforms the state of art in multiply distorted IQA. Sang Q (2018) Quaternion wavelet transform based full reference image quality assessment for multiply distorted images. PLoS ONE 13(6): e0199430. https://doi.
doi:10.1371/journal.pone.0199430 pmid:29949615 pmcid:PMC6021087 fatcat:blrg4zwbcrhhzik4jphrn2laje