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Old 22nd December 2019, 20:37   #117  |  Link
Atak_Snajpera
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Join Date: May 2006
Location: Poland
Posts: 7,810
I can't figure out why i'm getting that nasty banding and harsh cut-off in dark colors.

mediainfo
Quote:
Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L5.1@High
HDR format : SMPTE ST 2086, HDR10 compatible
Codec ID : V_MPEGH/ISO/HEVC
Duration : 10 min 0 s
Bit rate : 43.2 Mb/s
Width : 3 840 pixels
Height : 2 160 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0 (Type 2)
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.217
Stream size : 3.02 GiB (86%)
Writing library : ATEME Titan File 3.9.0 (4.9.0.0)
Default : Yes
Forced : No
Color range : Limited
Color primaries : BT.2020
Transfer characteristics : PQ
Matrix coefficients : BT.2020 non-constant
Mastering display color primaries : Display P3
Mastering display luminance : min: 0.0000 cd/m2, max: 1000 cd/m2
Code:
video=ConvertYUVtoXYZ(video,Color=0,HDRMode=0,OOTF=false,Crosstalk=0.0,threads=1)
video=ConverXYZ_BT2446_C_HDRtoSDR(video,PQMode=true,Lhdr=30000.0,Lsdr=100.0,pColor=0,threads=1)
video=ConvertXYZtoYUV(video,Color=2,pColor=0,OOTF=false,Crosstalk=0.0,threads=1)


for comparison DGHable
Code:
video=z_ConvertFormat(video,pixel_type="RGBPS",colorspace_op="2020ncl:st2084:2020:l=>rgb:linear:2020:l", dither_type="none").DGHable(exposure=1.0)
video=z_ConvertFormat(video,pixel_type="YV12",colorspace_op="rgb:linear:2020:l=>709:709:709:l",dither_type="ordered")


BTW ConvertXYZ_Hable_HDRtoSDR and others have the same problem.


DGHable

Last edited by Atak_Snajpera; 22nd December 2019 at 20:43.
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