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(1) (High Data Rate) A CDMA 3G technology. See Qualcomm HDR.

(2) (High Dynamic Range for photos) See HDR for photos.

(3) (High Dynamic Range for TV) A high dynamic range for display screens that generates more intense colors by producing blacker blacks and whiter whites. HDR is achieved by techniques within various TV brands or with TVs that support any of the HDR encoding standards added to the content.

In the TV
OLED TVs are known for their high contrast ratio; however, backlight techniques employed on LED/LCD TVs also create a high dynamic range. For example, a common method is "local dimming," in which the light is reduced to the dark pixels in real time. See OLED, LED TV and Dolby HDR.

Added to the Content
HDR10, Dolby Vision and HLG are HDR encoding methods that are added to the video format. Introduced in the mid-2010s, the effects are rendered on TVs that support one or more of the standards.

HDR10, HDR10+
HDR10 is part of the Ultra HD 4K Blu-ray standard. It supports 10-bit color, which renders 1,024 shades, one billion colors and 1,000 nits of brightness. Sometimes, the nits value is used as the designation because it is a bigger number and sounds better. HDR1000 and HDR10 are the same specification. However, HDR10+ adds meta-data and supports 12-bit color (4,086 shades) and 8K resolution. See nit.

Dolby Vision
Dolby Vision supports 12-bit color, which equates to 4,096 shades, 68 billion colors and 10,000 nits, although most displays cannot handle more than 4,000 nits. See Dolby HDR.

Both HDR10 and Dolby Vision use meta-data that compliant TVs interpret but non-HDR TVs ignore. However, HDR10 meta-data affects the overall content, whereas Dolby Vision meta-data can change from scene to scene.

HLG (Hybrid Log Gamma)
Developed by the broadcast industry, HLG is the newest of the three. HLG does not use meta-data but adds a logarithmic curve to the standard dynamic range (SDR) gamma curve. HLG is compatible with old and new TVs. See contrast ratio and PQ.
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References in periodicals archive ?
The proposed algorithm is blind that the watermark extraction only needs the watermarked HDR image or the LDR image after TM.
The RAW video will then be imported into an NLE capable of working with RAW footage and grading in the color space(s) required by HDR. Depending on your preferred post-production software, this could mean editing in one app and grading in another.
It provides all the capabilities needed to implement the full potential of HDR in both HD and 4K/UHD, said Leader Electronics.
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Last month, iTunes started listing movies as supporting 4K and HDR in users' purchase histories, thus providing more thrust to the speculations of the 4K Apple TV.
In the present study, we identified a nonsense mutation in GATA3 [sup][6] in a hearing impaired Chinese family with various clinical features of HDR syndrome by using targeted capture and next-generation sequencing (NGS).
In this study, we applied HDR concept using a wide range of luminosities to create a final image with more visible details, especially to highlight the RNFL and the characteristics of the optic disc.
This work aims to compare the analysis of LDR and HDR images (with their respective tone mapping techniques) for the detection and counting of tree fruits in order to predict their productivity.
The ''Global and Chinese Hard disk recorder (HDR) Industry, 2016 Market Research Report'' is a professional and in-depth study on the current state of the global Hard disk recorder (HDR) Market with a focus on the Chinese market.
The 55-inch TV from Kodak boasts of a 4K resolution with support for HDR added for good measure.
For more information about this kitchen remodeling, visit HDR Remodeling's projects and see what they can do for you and your community.
Release date- 26072019 - As broadcasters across Europe look to reinvigorate the audience experience, production professionals are rapidly getting on board with HDR.