Ok, thank you Michael. I'll try haldclut then. This means I have to do some research into Gimp too...
Gerardo Il giorno dom 10 mar 2019 alle ore 22:20 Michael Koch <[email protected]> ha scritto: > > Am 10.03.2019 um 22:05 schrieb Michael Koch: > > Am 10.03.2019 um 21:33 schrieb Gerardo Ballabio: > >> Thank you Michael -- but that means I still have to find good values > >> of brightness, contrast, gamma, saturation and hue to use with Gimp. > >> When I've done that, then couldn't I just apply the same values in > >> ffmpeg using the "eq" filter? > > > > That won't work because in most cases the values for brightness, > > contrast, saturation and so on don't have the same units in different > > programs. > > Also you can't be sure that different programs apply the filters in the > same order. Applying brightness before contrast doesn't give the same > result as contrast before brightness. It's an addition and a > multiplication, and it's important what's done first. > > Michael > > _______________________________________________ > ffmpeg-user mailing list > [email protected] > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
