Perceptually Dithered HDR for 8bit Interfaces

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Conference Paper
Content Type: Original Research
Volume: 2020, No. 11, pp. 1–11
Abstract: This paper explores the performance of applying dither when quantizing High Dynamic Range (HDR) achromatic images to lower bit depths. We found that by applying “perceptual dither”, or dither in the ITU-R BT.2100 ICTCP color representation, it is possible to reduce the bit-depth necessary for visually consistent reproduction by 2bits. We conclude that by using perceptual dithering, it is possible to achieve the precision of a 10bit source signal with only 8bits, or the precision of a 12bit source signal with only 10bits.
Publication Date: 2020-11-10
DOI: 10.5594/M001924
Link: https://doi.org/10.5594/M001924
Author(s): Robin AtkinsDirector, Research, Dolby Labs
Robert WanatSenior Color Scientist, Dolby Labs
Jaclyn PytlarzStaff Researcher, Dolby Labs
Keyword(s): HDR, Dithering, Quantization, Banding
Copyright: © 2020 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

Perceptual Signal Coding for More Efficient Usage of Bit Codes [Active]
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Robin Atkins, Robert Wanat, and Jaclyn Pytlarz; Perceptually Dithered HDR for 8bit Interfaces, SMPTE Meetings and Conferences ( November 2020); SMPTE, 2020. Available at https://doi.org/10.5594/M001924

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Robin Atkins, Robert Wanat, and Jaclyn Pytlarz; Perceptually Dithered HDR for 8bit Interfaces, SMPTE Meetings and Conferences ( November 2020); SMPTE, 2020. Available at https://doi.org/10.5594/M001924

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<span class="citation">Robin Atkins, Robert Wanat, and Jaclyn Pytlarz; <cite>Perceptually Dithered HDR for 8bit Interfaces</cite>, SMPTE Meetings and Conferences ( November 2020); SMPTE, 2020. Available at <a href="https://doi.org/10.5594/M001924" target="_blank" rel="noopener">https://doi.org/10.5594/M001924</a></span>

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Robin Atkins, Robert Wanat, and Jaclyn Pytlarz; Perceptually Dithered HDR for 8bit Interfaces, SMPTE Meetings and Conferences ( November 2020); SMPTE, 2020
doi: 10.5594/M001924
url: https://doi.org/10.5594/M001924

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Robin Atkins, Robert Wanat, and Jaclyn Pytlarz; <cite id="bib-10-5594-m001924">Perceptually Dithered HDR for 8bit Interfaces</cite>, SMPTE Meetings and Conferences ( November 2020); SMPTE, 2020
<span class="doi">10.5594/M001924</span>
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