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25th August 2018, 16:10 | #1 | Link |
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Convert 4k HDR to 1080p removing HDR
Hi, iv just attempted to convert a 4k video to MKV 1080p with handbreak, all went well it plays
but it has retained the HDR info( wasn't expecting it to ), so it looks all washed out on a non 4k tv is there a way to remove HDR, so essently making a blu ray from 4k HDR source material ? cheers Mike |
25th August 2018, 16:28 | #2 | Link |
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DGSource + DGHDRtoSDR + Avisynth+
http://rationalqm.us/hdr/DGHDRtoSDR_1.9.rar Requires an nVidia card. Use jpsdr's HDRTools if you do not have nVidia. |
28th August 2018, 18:21 | #4 | Link | |
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29th August 2018, 13:18 | #5 | Link | |
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BD Matrix Remastered BD HDR to SDR tonemapping via DGTonemap.dll (Hable) More screenshots https://www.bloodsuckerz.cx/bd-1080p...tml#post618794
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Windows 7 Image Updater - SkyLake\KabyLake\CoffeLake\Ryzen Threadripper Last edited by Atak_Snajpera; 29th August 2018 at 13:21. |
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30th August 2018, 08:44 | #6 | Link | |
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30th August 2018, 12:58 | #7 | Link |
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My point is that it is better to do own HDR->SDR conversion than rely on some "professionals". Remastered Matrix looks overexposed to me. Tonemapped version looks more natural.
Ps. Yes I prefer original green version in case if we want to talk about color grading.
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30th August 2018, 21:15 | #8 | Link | |
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Last edited by Gser; 30th August 2018 at 21:19. |
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31st August 2018, 12:11 | #9 | Link | |
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Original version Remastered SDR BD HDR to SDR tonemapped with DGHable
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Windows 7 Image Updater - SkyLake\KabyLake\CoffeLake\Ryzen Threadripper Last edited by Atak_Snajpera; 31st August 2018 at 12:19. |
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31st August 2018, 16:32 | #11 | Link | |
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If you want a more "pleasing" color, which is a controversial choice with something as intentionally stylized as the Matrix films, you could also switch your TV from Cinema to Standard mode. If you want to see what the filmmakers intended their SDR to look like, watch the original SDR version. And the Matrix films are pretty unique color-wise, so aren't good content to make broader generalizations from. Now, I certainly have seen HDR->SDR conversion be useful. For live sports, for example, where the color is pretty much all done in camera without significant creative color work happening in the truck. But for major movies and TV shows, the SDR represents a lot of creative work and expression. In many cases, the home video HDR starts with the SDR grade and is modified from there, with some scenes remaining roughly SDR. No automated conversion is going to understand creative intent like that. |
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29th May 2019, 01:45 | #13 | Link |
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It should be this
Code:
loadplugin("DGDecodeNV.dll") loadplugin("DGTonemap.dll") loadplugin("avsresize.dll") SetFilterMTMode("z_ConvertFormat", MT_MULTI_INSTANCE) # May not be needed. DGSource("THE GREAT WALL.dgi",fulldepth=true) z_ConvertFormat(pixel_type="RGBPS",colorspace_op="2020ncl:st2084:2020:l=>rgb:linear:2020:l", dither_type="none") DGHable() z_ConvertFormat(pixel_type="YV12",colorspace_op="rgb:linear:2020:l=>709:709:709:l",dither_type="ordered") prefetch(4) Last edited by an3k; 30th May 2019 at 06:59. |
29th May 2019, 06:04 | #14 | Link | |
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30th May 2019, 06:59 | #17 | Link | ||
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30th May 2019, 18:23 | #18 | Link | |
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The colors may seem washed out but I like them because they are closer to the natural colors. Look at the human skin for example. Personally, I'm entirely negative about HDR to SDR tone maping. |
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30th May 2019, 21:03 | #19 | Link |
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I think you might be confused. 8 bit color video can be HDR, why couldn't it? Watching BT.2020 on a sRGB/BT.709 display is simply wrong. Just don't watch HDR if you don't want to tone map it and don't have a HDR display that can display the entire range of the mastering display (complicated since no publisher does 4K SDR releases).
Closer to the natural colors? My world looks nothing like BT.2020 content on a BT.709 display. HDR tone mapping often looks odd in some ways, and I think you should just watch the SDR master if you have an SDR display, but that doesn't mean watching BT.2020 on a BT.709 display is in anyway useful.
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