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[BUG] Vapoursynth: Image Stream Luma TV Range not working correctly (??)
#4
Didn't have time to look at it so far, but this is probably as it should be, depending on your color matrix choice during the opening of the image sequence.

What you look at during the preview are the RGB values.
Based on the color matrix choice you tell Hybrid how to do RGB↔YUV conversions.
Quote:string matrix = "Rec601"

Controls the colour coefficients and scaling factors used in RGB↔YUV conversions.

"Rec601" : Uses Rec.601 coefficients; scale full range [0d..255d] RGB ↔ TV range [16d..235d] YUV.
"Rec709" : Uses Rec.709 (HD) coefficients; scale full range RGB ↔ TV range YUV.
"Rec2020" : Uses Rec.2020 (UHD) coefficients; scale full range RGB ↔ TV range YUV. AVS+
"PC.601" : Uses Rec.601 coefficients; keep range unchanged.
"PC.709" : Uses Rec.709 (HD) coefficients; keep range unchanged.
"Average" : Uses averaged coefficients (the luma becomes the average of the RGB channels); keep range unchanged.
see: http://avisynth.nl/index.php/Convert
Have you checked the actual color range using the Histogram in the preview?


Cu Selur
----
Dev versions are in the 'experimental'-folder of my GoogleDrive, which is linked on the download page.
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RE: Vapoursynth: Image Stream Luma TV Range not working correctly (??) - by Selur - 22.07.2020, 04:48

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