Problème couleur après export.

[Titouan32467480yzea]

Bonjour, 

J'ai un bug sur Mac après export de mes vidéos celles-ci sont toujours plus blanche. Idem pour les sous titres. 

La première image est durant le montage, la seconde après export. 

Merci d'avance pour vos réponses ! 

[Peru Bob]

See here:

Tone mapping in Premiere Pro

and here:

Color management in Premiere Pro

[R Neil Haugen]

You are on a Mac without Reference modes. And this happens when you play the videos in QuickTime Player, and Chrome and Safari browsers.

But it will not happen in VLC or Potplayer, or Firefox browser.

It happens because Apple, for some unknown reason, decided to apply the camera transform specified for Rec.709, as the display transform.

Essentially applying an effective gamma of 1.96, instead of the specified display transform for Rec.709 of gamma 2.4.

Any app that allows ColorSync to "manage" color gets the brighter gamma, 1.96. The apps that don't apply correct display transform using the gamma 2.4 specified for Rec.709 video.

So ... what you do is your choice. You have options in Premiere's color management settings which are all in the Color Workspace, Lumetri panel, the Settings tab ... the tab named Settings.

Set Display  Color Management to on, but past that, it's pick your poison.

If you only care about how it looks on Macs without Reference modes  ... then set the Viewing Gamma to 1.96/QuickTime.  Do your corrections to color.

Then, outside Premiere in Qt Player Chrome and Safari, but only on Macs without Reference modes! ... the image will appear similar to within Premiere on your system.

On all other systems, including Macs with Reference modes set to HDTV, all Android, PCs, TVs, and broadcast compliant setups, your exports will be too dark and oversaturated.

So ... whaddaya want? Systems like yours to get the "right" image, and all others a darker one? Or all others to get a "normal" image, and Macs without Reference modes a lighter shadows image?

If the latter, probably use a viewing gamma setting in Premiere of 2.2, as you choose between 2.2 and 2.4 based the brightness of your viewing environment while doing color work. Only use gamma 2.4 if you are in a darkened room with a monitor set to only 100 nits, which is the professional standard.

[Titouan32467480yzea]

Thanks for this response.

I try to export in 2,4 and 2,2 and see no difference. 

What do you think of this export preset ? 
https://we.tl/t-h2eMAcyM5R

I forgot to mention that i film with an Iphone 15 i don't know if it's important or not.

Thnaks 

[R Neil Haugen]

You don't "export in" ... there isn't ever a gamma applied to the exported file.

You set the viewing gamma, so when you work on the clips, because you view them differently, you correct things differently.

Everything else is covered above no matter what device you shot with. Specifically including iPhones.

Especially note my section on why the display of the file is different on Macs without Reference modes. Which is nearly my entire lengthy post above.

[Titouan32467480yzea]

Okkk thanks a lot for your response !

Did you have any information about how to export for the best quality for youtube ?

Youtube always destruct quality, because of the compression. 
But if you have best practices to reduce that it can be awesome ! 🙏

[R Neil Haugen]

I do know a lot of people use a higher grade export to YouTube as they think it may survive the additional transcoding and compression that YouTube applies to everything. But you need pretty decent upload speeds to do this.

As in sending UHD ProRes Lt rather than 1920x1080 H.264.

Or using H.265/HEVC rather than H.264. 

Things like that.