---------------------------------------- > To: [email protected] > From: [email protected] > Date: Thu, 14 May 2015 12:44:10 +0000 > Subject: Re: [FFmpeg-user] HD> SD Down-Convert Prores Color > > Kevin Wells <kevwells <at> hotmail.co.uk> writes: > >> This does not suffer from the issue, but the colours >> look slightly off, I have attached screen grabs. > > How did you produce them, I cannot reproduce? > >> ffmpeg -i /Users/kev/Movies/HD_BARS.mov >> -vf scale=720:576 -vcodec v210 -an out.mov > > I tested the following: > $ ffmpeg -i HD_BARS.mov out1.jpg > $ ffmpeg -i out.mov out2.jpg > > Both jpgs have different size, but same colour here. > > Carl Eugen > > _______________________________________________ > ffmpeg-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Hi Carl, I used Photoshop to produce the jpegs, which was quite a close representation of the two movs. I just tried the same method as you and used ffmpeg to produce the jpegs, and ffmpeg is changing the colours, it's not a good representation of the movs doing it this way. If you can open the two mov files up and put them side by side, you can noticeably see a difference between the greens, and other colours. Not sure why creating jpegs using ffmpeg is 'correcting' the colours from the movs though. I am ultimately putting my movs on a timeline in FCP and using the video scopes to check the levels, and can see they are way off. Is there anything I can do to help? Kind regards. _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user
