Its really not that nuts once you take some things into account. The only gotcha in this is that Final Cut Pro calibrates to a predetermined video gamma uses some standards based on whether or not you are running in SD or HD. HD sources use the 709 color correction values, SD use 601. This is because FCP is meant for pro output on calibrated monitors and for use with video output boards for playout and record (to honest to goodness video, not computer monitors).
Quicktime and other apps calibrate to your display, which is the normal computer output and expects different gamma and color responses than video. Thus the optional pref in Quicktime to treat movies like FCP does, if thats something you want to deal with. Apps like AE and Photoshop have color management workflows that you can optionally enable, which take their best guess as to the source of a video or file, and the destination colorspace you work in. Core Image and Quicktime have similar input, working and output colorspace keys you can set to ensure that you get what you want. This is not to say its not nuanced and tricky, and rife with possible got-chas, but that its not really "nuts". On Dec 21, 2010, at 5:10 PM, George Toledo wrote: > > > On Tue, Dec 21, 2010 at 4:34 PM, Jason Belec <jasonbe...@rogers.com> wrote: > You can also work the default QC output to match (closely) and apply that to > everything coming in. Ran into this in the past myself. > > > > What would be imminently useful is solid, factual, info from Apple about how > to work around the color issue correctly (if this is *even possible*), > instead of "fudge it til it looks right", or "buy product X". > > Colorspace issues, Quicktime, CI problems, etc., in OS X is totally nuts, and > it needs to be resolved. > > -GT > > On 2010-12-21, at 4:52 PM, vade <dokt...@mac.com> wrote: > >> FCP does not use ColorSync to display video, it has its own color correction >> and gamma correction routines depending if you are running 601 or 709 >> formatted video. Quartz Composer, Quicktime and most other apps use >> ColorSync. >> >> If you have QT 7 installed on your system FCP installs a separate preference >> called Final Cut Studio Color Compatibility in to the QT prefs. Enable it, >> and Quicktime now uses the same color lookup as Final Cut Pro does. Open >> your comp, it should, hopefully, look the same. >> >> But this is almost certainly a color conversion routine. >> >> >> On Dec 21, 2010, at 1:32 PM, Patrick Sheffield wrote: >> >>> The original image came from a BetaSP tape, but it doesn't matter - I see >>> the same difference in all material. >>> >>> I didn't include a composition as all I'm doing is taking an input image >>> and the Screen blend node and running it into both inputs, then the result >>> to a billboard. If I do the same thing in FCP/Motion (place an image on >>> V1/V2 with V2 set to Screen composite mode), the result is considerably >>> different. I don't think Quartz is doing it wrong, I just need to figure >>> out what FCP/Motion are actually doing... >>> >>> regards, >>> >>> Patrick >>> >>> On Dec 21, 2010, at 10:16 AM, George Toledo wrote: >>> >>>> No composition? >>>> >>>> This makes it hard to discern. >>>> >>>> Try using Billboard, and adjusting native core image in settings, to see >>>> if that makes a difference. >>>> >>>> Where are these images coming from? They both have edge crud... is this >>>> from the screengrab? It looks like a gamma difference (but maybe not). Is >>>> that happening because the FCP image is coming from something that is >>>> already run through a codec? >>>> >>>> -GT >>>> >>>> On Tue, Dec 21, 2010 at 1:08 PM, Patrick Sheffield >>>> <psheffi...@earthlink.net> wrote: >>>> >>>> ...between how Quartz Composer processes the Screen blend mode and how >>>> Final Cut Pro and Motion do it? >>>> >>>> This is an image screened over itself in Final Cut Pro/Motion: >>>> >>>> >>>> >>>> >>>> And in Quartz Composer: >>>> >>>> >>>> >>>> >>>> In Quartz Composer it's flatter and considerably more red than FCP. >>>> >>>> If I perform a Screen Blend (the inverse of the multiplication of the >>>> inverse), I get the same result as Quartz, but I need to figure out what >>>> FCP/Motion are doing differently. >>>> >>>> Does anyone have any insight? >>>> >>>> Thanks, >>>> >>>> Patrick Sheffield >>>> Sheffield Softworks >>>> >>>> >>>> _______________________________________________ >>>> Do not post admin requests to the list. They will be ignored. >>>> Quartzcomposer-dev mailing list (Quartzcomposer-dev@lists.apple.com) >>>> Help/Unsubscribe/Update your Subscription: >>>> http://lists.apple.com/mailman/options/quartzcomposer-dev/gtoledo3%40gmail.com >>>> >>>> This email sent to gtole...@gmail.com >>>> >>>> >>>> >>>> -- >>>> George Toledo >>>> gtole...@gmail.com >>>> www.georgetoledo.com >>>> >>>> The information contained in this E-mail and any attachments may be >>>> confidential. >>>> If you have received this E-mail in error, please notify us immediately by >>>> telephone or return E-mail. >>>> You should not use or disclose the contents of this E-mail or any of the >>>> attachments for any purpose or to any persons. >>>> >>> >>> _______________________________________________ >>> Do not post admin requests to the list. They will be ignored. >>> Quartzcomposer-dev mailing list (Quartzcomposer-dev@lists.apple.com) >>> Help/Unsubscribe/Update your Subscription: >>> http://lists.apple.com/mailman/options/quartzcomposer-dev/doktorp%40mac.com >>> >>> This email sent to dokt...@mac.com >> >> _______________________________________________ >> Do not post admin requests to the list. They will be ignored. >> Quartzcomposer-dev mailing list (Quartzcomposer-dev@lists.apple.com) >> Help/Unsubscribe/Update your Subscription: >> http://lists.apple.com/mailman/options/quartzcomposer-dev/jasonbelec%40rogers.com >> >> This email sent to jasonbe...@rogers.com > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Quartzcomposer-dev mailing list (Quartzcomposer-dev@lists.apple.com) > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/quartzcomposer-dev/gtoledo3%40gmail.com > > This email sent to gtole...@gmail.com > > > > -- > George Toledo > gtole...@gmail.com > www.georgetoledo.com > > The information contained in this E-mail and any attachments may be > confidential. > If you have received this E-mail in error, please notify us immediately by > telephone or return E-mail. > You should not use or disclose the contents of this E-mail or any of the > attachments for any purpose or to any persons. > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Quartzcomposer-dev mailing list (Quartzcomposer-dev@lists.apple.com) > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/quartzcomposer-dev/doktorp%40mac.com > > This email sent to dokt...@mac.com
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