Related papers: A New Journey from SDRTV to HDRTV

A New Journey from SDRTV to HDRTV

URL: http://arxiv.org/abs/2108.07978v1
Date: Wed, 18 Aug 2021 05:17:08 GMT
Title: A New Journey from SDRTV to HDRTV
Authors: Xiangyu Chen, Zhengwen Zhang, Jimmy S. Ren, Lynhoo Tian, Yu Qiao, Chao Dong
Abstract summary: We conduct an analysis of SDRTV-to-TV task by modeling the formation of SDRTV/TV content. We present a lightweight network that utilizes global statistics as guidance to conduct image-adaptive color mapping.
Score: 36.58487005995048
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: Nowadays modern displays are capable to render video content with high dynamic range (HDR) and wide color gamut (WCG). However, most available resources are still in standard dynamic range (SDR). Therefore, there is an urgent demand to transform existing SDR-TV contents into their HDR-TV versions. In this paper, we conduct an analysis of SDRTV-to-HDRTV task by modeling the formation of SDRTV/HDRTV content. Base on the analysis, we propose a three-step solution pipeline including adaptive global color mapping, local enhancement and highlight generation. Moreover, the above analysis inspires us to present a lightweight network that utilizes global statistics as guidance to conduct image-adaptive color mapping. In addition, we construct a dataset using HDR videos in HDR10 standard, named HDRTV1K, and select five metrics to evaluate the results of SDRTV-to-HDRTV algorithms. Furthermore, our final results achieve state-of-the-art performance in quantitative comparisons and visual quality. The code and dataset are available at https://github.com/chxy95/HDRTVNet.

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