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22 September 2015 Implication of high dynamic range and wide color gamut content distribution
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Abstract
High Dynamic Range (HDR) and Wider Color Gamut (WCG) content represents a greater range of luminance levels and a more complete reproduction of colors found in real-world scenes. The current video distribution environments deliver Standard Dynamic Range (SDR) signal. Therefore, there might be some significant implication on today's end-to-end ecosystem from content creation to distribution and finally to consumption. For SDR content, the common practice is to apply compression on Y'CbCr 4:2:0 using gamma transfer function and non-constant luminance 4:2:0 chroma subsampling. For HDR and WCG content, it is desirable to examine if such signal format still works well for compression, and it is interesting to know if the overall system performance can be further improved by exploring different signal formats and processing workflows. In this paper, we will provide some of our insight into those problems.
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Taoran Lu, Fangjun Pu, Peng Yin, Tao Chen, and Walt Husak "Implication of high dynamic range and wide color gamut content distribution", Proc. SPIE 9599, Applications of Digital Image Processing XXXVIII, 95990B (22 September 2015); https://doi.org/10.1117/12.2188572
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