H.264 export — Washed out

[Tim Kolb]

The gamma difference between Windows (2.2) and Mac (1.8) is sometimes compensated for within QT, even if your system’s displays are calibrated differently.

Have you played these compressed clips on a Mac? I’m wondering if they look as you intended there?

If so, try the application at this link:

https://support.franticfilms.com/wb/default.asp?action=9&fid=14&read=74

Mark Wiebe from Frantic Films wrote his own app to strip this little compensation component from a QT movie and is kind enough to simply share it.

Maybe that will help.

TimK,
Director,
Kolb Productions,

Creative Cow Host,
Author/Trainer
http://www.focalpress.com
http://www.classondemand.net

[Solagratia77]

Thank you Tim !

Unfortunately the little app did not find any gamma tag in my QT files.
And as I investigated , I found out that it has nothing to do with encoding process nor is there something wrong with the quicktime file.

The problem (in my case) was related to the DirectDraw (DirectX) acceleration. In the QT preference tab, I turn those off and used the GDI method instead. And everything looked fine. But the playback is not smooth (on a Dual-Dualcore XP machine with 4GB Ram and Raptor Drive)

So for now I have decided to turn back on the acceleration and
put up with the washed out pics.

Thanks again for you help.

-J
SolaGratia

[Benloveridge]

Not sure if you have this option in Premiere but this is what I did to work around this problem in Final Cut Pro. Export using Quicktime conversion, format is Quicktime movie, select ‘options’, ‘filter’, ‘adjustments’, source profile set to Adobe RGB, destination profile set to sRGB IEC6966, matching option left on ‘perceptual’. I used to have the same problem with photoshop and getting washed out colour shifts when exporting pictures for the internet. The same kind of colour space conversion seems to have done the trick for me in video land.