ΔEITP is now ITU-R BT.2124-is the industry ready to move on from ΔE2000?

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Conference Paper
Content Type: Original Research
Volume: 2019, No. 10, pp. 1–26
Abstract: For many years, ΔE2000 has been considered the industry standard for estimating perceptual color differences and evaluating the color accuracy of display technologies. Recently, the International Telecommunications Union (ITU) released Recommendation ITU-R BT.2124, which defines a new metric, ΔEITP, as the new standard for evaluating perceptual color differences. Given this new recommendation, it is important that we become familiar with how ΔEITP performs in practice and what can be expected when using it in existing workflows. A key part in this process is having an understanding of the properties of the color space that the color difference metric is based on and how that relates to the intended application of the metric. In this paper, we explore this relationship as it pertains to the ΔE2000 and ΔEITP color difference metrics, specifically in the context of evaluating color reproduction on self-luminous displays. Simulated data and measured data from calibrated displays are used to compare the metrics' performance. Given that ΔE2000 and ΔEITP are based on significantly different derivation principles, there are notable differences that must be acknowledged between these two metrics, especially as we transition between them. It is highly likely that ΔE2000 has been underpredicting perceptual color differences, significantly so when used for the evaluation of high dynamic range (HDR) and wide color gamut (WCG) displays.
Publication Date: 2019-10-21
DOI: 10.5594/M001879
Link: https://doi.org/10.5594/M001879
Author(s): Catherine MeiningerPortrait Displays, 123 2nd Ave S, Suite 200, Edmonds, WA 98087
Tyler PruittPortrait Displays, 123 2nd Ave S, Suite 200, Edmonds, WA 98087
Vincent TeohHDTVtest, 23 Langdale Road, Sale, M33 4EN, United Kingdom
Keyword(s): Color Difference Metric, Delta E2000, ΔEITP, ICTCP, CIELAB, Calibration, HDR, Wide Color Gamut
Copyright: © 2019 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

Perceptual Signal Coding for More Efficient Usage of Bit Codes [Active]
Objectively Evaluating High Dynamic Range and Wide Color Gamut Color Differences [Active]
Hitting the Mark—A New Color Difference Metric for HDR and WCG Imagery [Active]
ISO/CIE 11664-6 [Active]
J. Pytlarz and E. Pieri, “How Close Is Close Enough? Specifying Colour Tolerances for HDR and WCG Displays,” IBC2017, IET Journals, Sept. 2017 EXTERNAL
G. Wyszecki, “Proposal for a New Color-Difference Formula”, J. Opt. Soc. Am., 53:11, 1318, 1963. EXTERNAL
M.D. Fairchild, “Traditional Colorimetric Applications,” in Color Appearance Models, 2nd ed., Chichester, West Sussex, England: J. Wiley, 2005. EXTERNAL
M.D. Fairchild, “Human Color Vision,” in Color Appearance Models, 2nd ed., Chichester, West Sussex, England: J. Wiley, 2005. EXTERNAL
M.D. Fairchild, “Color Appearance Models,” in Color Appearance Models, 2nd ed., Chichester, West Sussex, England: J. Wiley, 2005. EXTERNAL
G. Mather, “Visual physiology,” in Essentials of Sensation and Perception, 3rd ed., . New York: Routledge, 2011. EXTERNAL
M.R. Luo, G. Cui, B. Rigg, “The Development of the CIE 2000 Colour-Difference Formula: CIEDE2000”, Color Research & Application, 26(5): 340-350, Oct. 2001 EXTERNAL
M.D. Fairchild, “Color Appearance Phenomena,” in Color Appearance Models, 2nd ed., Chichester, West Sussex, England: J. Wiley, 2005. EXTERNAL
M.D. Fairchild, “Psychophysics,” in Color Appearance Models, 2nd ed., Chichester, West Sussex, England: J. Wiley, 2005. EXTERNAL
G.M. Johnson, M.D. Fairchild, “A Top Down Description of S-CIELAB and CIEDE2000”, Color Research & Application, 28(6): 425-435, Dec. 2003. EXTERNAL
A. Robertson, “Historical Development of CIE Recommended Color Difference Equations”, Color Research & Application, 15 (3): 167-170, Jun. 1990. EXTERNAL
B. Bauer, “Does Stevens’s Power Law for Brightness Extend to Perceptual Brightness Averaging?”, The Psychological Record, 59(2): 171-186, 2009 EXTERNAL
“What is ICTCP?” Dolby White Paper, Version 7.2 EXTERNAL
ITU-R BT.2100-2 [Active]
R-REC-BT.2124 — International Telecommunication Union – Radiocommunication (ITU-R), Recommendation BT.2124, “Objective Metric for the Assessment of the Potential Visibility of Colour Difference in Television,” Jan. 2019. EXTERNAL
SMPTE RP 177:1993 [Active, Stabilized]

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Catherine Meininger, Tyler Pruitt, and Vincent Teoh; ΔEITP is now ITU-R BT.2124-is the industry ready to move on from ΔE2000?, SMPTE Meetings and Conferences ( October 2019); SMPTE, 2019. Available at https://doi.org/10.5594/M001879

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Catherine Meininger, Tyler Pruitt, and Vincent Teoh; ΔEITP is now ITU-R BT.2124-is the industry ready to move on from ΔE2000?, SMPTE Meetings and Conferences ( October 2019); SMPTE, 2019. Available at https://doi.org/10.5594/M001879

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<span class="citation">Catherine Meininger, Tyler Pruitt, and Vincent Teoh; <cite>ΔEITP is now ITU-R BT.2124-is the industry ready to move on from ΔE2000?</cite>, SMPTE Meetings and Conferences ( October 2019); SMPTE, 2019. Available at <a href="https://doi.org/10.5594/M001879" target="_blank" rel="noopener">https://doi.org/10.5594/M001879</a></span>

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Catherine Meininger, Tyler Pruitt, and Vincent Teoh; <cite id="bib-10-5594-m001879">ΔEITP is now ITU-R BT.2124-is the industry ready to move on from ΔE2000?</cite>, SMPTE Meetings and Conferences ( October 2019); SMPTE, 2019
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