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Old 09-16-2018, 01:44 AM   #1
coffeeaddict6 coffeeaddict6 is offline
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Default Active HDR

Forgive me if there's another thread already. I see these LG class uk6200 TVs are big time on sale now. They have Active HDR, so should these be able to do HDR 10 and what's with Active HDR as I haven't seen much mention of it?
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Old 09-16-2018, 03:50 AM   #2
afr52 afr52 is offline
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The UK6200 is crafted with a slim, seamless body thats ideal for any room aesthetic. Queue up movies, TV shows, online content and more from top content providers then toggle between them with an impressively intuitive interface. Paired with the LG Magic Remote, seeing all your favorites is as easy as the flick of the wrist and the press of a button. The UK6200 uses a powerful quad-core processor that minimizes video noise, enhances sharpness and assures accurate colors for a remarkably lifelike 4K picture. This LG 4K TV supports multiple formats of HDR content, including HDR10 and HLG, both optimized with scene-by-scene picture adjustment. webOS; Quad-Core Processor; 4k Active HDR; Slim Unibody; Ultra Surround
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Old 09-16-2018, 04:19 AM   #3
gkolb gkolb is offline
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Quote:
Originally Posted by afr52 View Post
The UK6200 is crafted with a slim, seamless body thats ideal for any room aesthetic. Queue up movies, TV shows, online content and more from top content providers then toggle between them with an impressively intuitive interface. Paired with the LG Magic Remote, seeing all your favorites is as easy as the flick of the wrist and the press of a button. The UK6200 uses a powerful quad-core processor that minimizes video noise, enhances sharpness and assures accurate colors for a remarkably lifelike 4K picture. This LG 4K TV supports multiple formats of HDR content, including HDR10 and HLG, both optimized with scene-by-scene picture adjustment. webOS; Quad-Core Processor; 4k Active HDR; Slim Unibody; Ultra Surround
Did you just quote a press release/ web page?
What is Active HDR?
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Old 09-16-2018, 06:48 AM   #4
jibucha jibucha is online now
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Default LG :: Active HDR (UK6200)

LG :: Active HDR (UK6200)
  • it's creating dynamic metadata for HDR10 & SDR ('scene by scene')
  • or, creating scene by scene metadata when there already is none
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Old 09-16-2018, 08:11 AM   #5
AlexIlDottore AlexIlDottore is offline
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Quote:
Originally Posted by afr52 View Post
The UK6200 is crafted with a slim, seamless body thats ideal for any room aesthetic. Queue up movies, TV shows, online content and more from top content providers then toggle between them with an impressively intuitive interface. Paired with the LG Magic Remote, seeing all your favorites is as easy as the flick of the wrist and the press of a button. The UK6200 uses a powerful quad-core processor that minimizes video noise, enhances sharpness and assures accurate colors for a remarkably lifelike 4K picture. This LG 4K TV supports multiple formats of HDR content, including HDR10 and HLG, both optimized with scene-by-scene picture adjustment. webOS; Quad-Core Processor; 4k Active HDR; Slim Unibody; Ultra Surround
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Old 09-16-2018, 08:13 AM   #6
samlop10 samlop10 is offline
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It’s basically this:

Quote:
Originally Posted by samlop10 View Post
... object-based dynamic tone mapping, which means they prioritize tone mapping based on individual objects on the screen and their specific luminance based on the specific shot, and don’t go entirely based off static metadata (I’m not sure if they use it at all). Compared to most other models from other brands, LG prioritizes tone mapping ‘down’ to preserve as much detail in brighter areas as opposed to clipping them. This makes APL go lower which makes overall brightness for some films low, however, IMO, if you watch it in a dark room that is not a problem. Sony (up until now anyway) and other brands clip at some point to preserve a higher overall brightness level.

...
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Old 09-16-2018, 10:03 AM   #7
oddbox83 oddbox83 is offline
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It's really not a world apart from the Dynamic Contrast they've had in their TVs for ages then?
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Old 09-17-2018, 06:38 AM   #8
samlop10 samlop10 is offline
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Quote:
Originally Posted by oddbox83 View Post
It's really not a world apart from the Dynamic Contrast they've had in their TVs for ages then?
Not sure if that statement is true but they’re definitely not the same. Tone mapping tries to save as much detail as possible in dark and bright areas, and dynamic tone mapping does it better since it’s done depending on the objects in the image of a specific scene (for HDR content). Dynamic contrast can be done on top of dynamic tone mapping, and in both SDR and HDR cases it usually crushes detail in dark or bright areas. Most home theater enthusiasts leave it off since we know what it does, it might look more ‘pleasing’ to the eye but it’s usually at the expense of information in the image.

What’s confusing is that in some 2017 LG models the ‘switch’ to activate dynamic tone mapping was within the Dynamic Contrast setting since LG added dynamic tone mapping to those models after they were released and the UI had been finalized, so there was not a dedicated setting for it so they added under Dynamic Contrast. 2018 LG models also have the same kind of dynamic tone mapping but they do actually have a dedicated section in the UI for the settings for dynamic tone mapping. That was definitely confusing for some people but LG clarified it in one of their white papers for the settings for the proper 2017 models.
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Old 09-17-2018, 10:45 PM   #9
meglos meglos is offline
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Active HDR is designed to take the static metadata HDR formats such as HDR10 and tries to makes them perform more like dynamic metadata HDR formats like Dolbyvision and HDR10+ (if that ever really hits the market.)

For a good explanation of static vs. dynamic metadata check out:

https://www.avforums.com/article/wha...metadata.13402

Spoiler Alert: Dynamic Metadata is better.
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