Re: behaviour of colour wheels
Kevin Wheatley <[email protected]>
| Newsgroups | gmane.comp.video.linux.movies |
|---|---|
| Organization | Cinesite (Europe) Ltd. |
| Message-ID | <[email protected]> |
Stefan Klein wrote: > > Hi, > > a question to anyone who has worked with colour wheels for colour > correction/grading: > If you have a perfectly white picture (or an area therefore, to be more > realistic) and you shift the balance towards whichever colour using the > colour wheel, is white itself affected? If not, why not? > The colour balance tool of Photoshop (Image>Adjust>Color Balance...) does > not affect white, but I suspect this is not the same kind of correction > colour wheels do, but I don't have access to a tool to try it out. I sent a responce to the GIMP mailing list only a short while ago, hopefully you'll get it, but essentially yes, but it depends on the control you adjust, but differential controls are roughly luminance preserving but hue is shifted. Kevin -- | Kevin Wheatley | These are the opinions of | | Senior Do-er of Technical Things | nobody and are not shared | | Cinesite (Europe) Ltd | by my employers | ------------------------------------------------------- This SF.Net email is sponsored by: Oracle 10g Get certified on the hottest thing ever to hit the market... Oracle 10g. Take an Oracle 10g class now, and we'll give you the exam FREE. http://ads.osdn.com/?ad_id=3149&alloc_id=8166&op=click