[FFmpeg-user] MP4-->JPG changes brightness?

Reino Wijnsma rwijnsma at xs4all.nl
Sat May 15 23:01:53 EEST 2021

On 2021-05-15T20:16:59+0200, Steven Kan <steven at kan.org> wrote:
> https://www.kan.org/pictures/StillsFromFFmpegVsQTPreview.gif 

You're now confusing things. From the urls in your previous e-mail it was in fact 'TrailDownStillQTScreenCap.jpg' that stood out, not 'TrailDownStillQTPreview.jpg'.
I was talking about 'TrailDownStillffmpeg.jpg' and 'TrailDown.mp4'. They look the same (except for the jpg compression of course).
All JPGs look the same to me color and brightness wise, except for 'TrailDownStillQTScreenCap.jpg', which indeed has its brightness turned up (and by the looks of it has also underwent some sharpening).


More information about the ffmpeg-user mailing list