High quality color system conversor

[luquinhas0021]

Does AviSynth have some internal or external color system conversion plug-in that maintain the exact tonality of frame? the "convert to" function isn't good

[luquinhas0021]

I converted the color system source to YUV 4:4:4 or to RGB 888, with only ConvertTo command. The frames I used to download are in YUV 4:2:0. All frames I apply this code had tonal color change. One, I downloaded from Infognition site (Avatar 3 LR), inLagarith, and I converted it to H.264 mp4; another (One Direction - Night Changes) I downloaded from clip converter.cc, in H.264 mp4. I watch them on MPC-BE, with LAV Filters 0.65.0 and video mixing renderer 9 as the internal MPC-BE's renderer.

[huhn]

first of all if you care about correct colors you should use a video renderer that does care too.

you have to add the source colorspace to your encode or the video render is just guessing. is the source BT 709 BT 601 or sRGB?

same for convertto it needs to know the colorspace.

and don't forget full and limited range.

[luquinhas0021]

It's sRGB rec 709 full range

[huhn]

sRGB is bt 709 with a different gamma.

and that does tell anything about the source...