Quality Assessment of HDR/WCG Images Using HDR Uniform Color Spaces - Inria - Institut national de recherche en sciences et technologies du numérique Access content directly
Journal Articles Journal of Imaging Year : 2019

Quality Assessment of HDR/WCG Images Using HDR Uniform Color Spaces

Abstract

High Dynamic Range (HDR) and Wide Color Gamut (WCG) screens are able to render brighter and darker pixels with more vivid colors than ever. To assess the quality of images and videos displayed on these screens, new quality assessment metrics adapted to this new content are required. Because most SDR metrics assume that the representation of images is perceptually uniform, we study the impact of three uniform color spaces developed specifically for HDR and WCG images, namely, ICtCp , Jz azbz and HDR-Lab on 12 SDR quality assessment metrics. Moreover, as the existing databases of images annotated with subjective scores are using a standard gamut, two new HDR databases using WCG are proposed. Results show that MS-SSIM and FSIM are among the most reliable metrics. This study also highlights the fact that the diffuse white of HDR imagesplays an important role when adapting SDR metrics for HDR content. Moreover, the adapted SDR metrics does not perform well to predict the impact of chrominance distortions.
Fichier principal
Vignette du fichier
jimaging-05-00018-v2.pdf (4.91 Mo) Télécharger le fichier
Origin : Publisher files allowed on an open archive
Loading...

Dates and versions

hal-02131890 , version 1 (30-09-2020)

Identifiers

Cite

Maxime Rousselot, Olivier Le Meur, Rémi Cozot, Xavier Ducloux. Quality Assessment of HDR/WCG Images Using HDR Uniform Color Spaces. Journal of Imaging, 2019, 5 (1), pp.40. ⟨10.3390/jimaging5010018⟩. ⟨hal-02131890⟩
113 View
234 Download

Altmetric

Share

Gmail Facebook X LinkedIn More