Video conversion from SDR to HDR (inverse tone mapping) and upscaling.

[monliv]

Hello everyone,
I am new here, but for some time I have been looking for a solution
To bring a video from SDR to HDR in 4K.
Here I share my experience.
I got a very similar quality file to the one produced by UNIFAB, option SDR to HDR.
First step (optional)
With Topaz-Video-AI (I use version 3.3.9) 1080p resolution, artemis/medium quality model, grain if needed and original detail recovery at 10, I get a very good quality video with ai.
Obviously with topaz it is possible to upscale, but the runtime expands enormously

Second step
With StaxRip (I use version 2.17.0 portable) which I think is really better.
coding options:
VPP/MISC2 section, I optimize the various adjustments similar to UNIFAB
and VUI section
I don't use luts, which are great with image, but not so good with video (is my opinion).
I always create video in VBR HEVC, but you can change it as you wish.
Please try it.

[monliv]

on STAXRIP

VPP

TWEAKING
Brightness 0,1
Contrast 1,5
Saturation 1,1
Gamma 1,4

Colorspace
Matrix from bt709
to bt2020nc
Color prim bt709
to bt2020
Transfer from bt709
to smpte2084
Range from Undefined

VUI
Master display G(13250,34500)B(7500,3000)R(34000,16000)WP(15635,1 6450)L(40000000,50)
Sample auto
Colormatrix BT2020NC
Colorprim BT 2020
Transfer SMPTE 2084
ATC SEI auto
Clorrange Limited
Maximum CLL 1529
Max FALL 380
Chromaloc 2
Flag on Insert access and Output VPS

Obtain
Color range : Limited
Colori primari : BT.2020
Caratteristiche trasferimento : PQ
Coefficienti matrici : BT.2020 non-constant
Mastering display color primaries: Display P3
Mastering display luminance : min: 0.0050 cd/m2, max: 4000 cd/m2
Maximum Content Light Level : 1529 cd/m2
Maximum Frame-Average Light Level: 380 cd/m2

HDR on samsung TV

[Selur]

.. and this is in the news section,.. why?

[monliv]

I apologize if I have the wrong section, but I thought it might be helpful.