How do I fade using Chroma-key?

In Final Cut Pro X, I am having some trouble fading up from black to a keyed scene.
Here is the situation. I have my subject sitting at a table in front of a green screen. The Chroma Keyer in FCPX works great, and I am able to put my image on the timeline and set up the key how I want. The problem that I am running into is that when I add a fade from black on the video, the background image does not fade up with the keyed video.
I have attempted several variations, and the best solution that I have found thus far is to simply set keyframes and ramp the opacity from 0-100 over a few seconds. This still causes a problem where the background image fades up over the video during the fade, but it is the best thing I have come up with so far.

I'm just learning FCP X (using the Trial) but I can tell you that to do this in FCP7 you had to nest the two clips. In other words, you had to take the green screen clip and the background you were compositing it over, nest them so that FCP considered it one clip, then apply the fade or transition to that.
I can't tell you how that translates into FCP X, but I would look for a similar concept - combine the two clips and apply the fade to the combined clip. Surely it's possible though.
Hope this helps

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Can I use Chroma key with première elements 13 to incrust a picture in another one ?

en français
Bonsoir à tous
Avec première éléments 13, peut on incruster une image dans une autre en utilisant par exemple un fond noir et en supprimant ce fond avec le chroma key ? Je n'ai vu cette possibilité que dans première pro
Dans la version essai, y a t-il un logo Adobe sur les films montés (en filigrane ou autre) ?
Merci d'avance de vos réponses

trournesol02
Regarding your second question....you cannot remove the Adobe watermark from an export from the tryout project file, be the export a file saved to the computer hard drive or a burn to disc product. You can remove the Adobe watermark from a project file from the tryout if you open it in the purchased version.
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a. open the tryout project file in the purchased version, use Timeline Menu/Delete Rendered Files and the Adobe watermark should be gone.
or
b. open the tryout project file in the purchased version, and do nothing...the Adobe watermark may disappear automatically.
The way "a" is the classical way. But many of us have found "b" to work for us.
What is the computer operating system involved? Premiere Elements Mac does not have ChromaKey, Green Screen Key, or Blue Screen Key.
It has Videomerge which I do not prefer. Instead for Premiere Elements Mac users, I would suggest the Difference Matte.
ATR Premiere Elements Troubleshooting: PE11: Difference Matte As Substitute for Green or Blue Screen Key
If you are using Premiere Elements 13 Windows, please refer to fx Effects/Keying/.
Any questions or need clarification on any of the above, please do not hesitate to ask.
Thank you.
ATR

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Fade In (Chroma Key)

I have three video clips in my timeline.
1. The original "talking head" video with the green screen keyed out.
2. The background image behind the "talking head"
3. An overlay created in LiveType (this appears on top of the other two images)
I would like to fade them all in from black as if they were all joined into a single track.
I am using the "Fade in Fade Out Dissolve" at the beginning of each of the three tracks.
But, when the video fades in, the original "talking head" appears slightly opaque.
So, during the fade-in, you can see the background image behind the "opaque" face of the talking-head.
Is there a way to apply a fade-in to all all of the tracks combined (as if they were a single track)?
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- Tom
Dual 1.8 GHz PowerPC G5 Mac OS X (10.4.8)

You need to 'nest' the clips.
Firstly, move all clips up a couple of tracks so they are clear of the clip you want to dissolve in to, then extend each clip by 12 frames to give them 'handles', then select all three clips and press option(alt)+C which will create a nested sequence... you will be prompted to name the new sequence... call it something like 'talking head dissolve'. When you click 'OK' the three clips will merge in to one, a purple colour... select the end of the nested clips and trim back those 12 frames you gave it for handles, then move the clip back into place, and apply the dissolve as usual.
If you double-click on the nested-sequence, it will open up a new sequence giving you access to the three original clips.
Note 1: if you want a longer, slower dissolve, you must extend the handle by more than 12 frames. I only suggested 12 frames as that matches the timing of the default dissolve of 1 second (approx. 12 frames each side of the transition).
Note 2: If you double-click to get access to the original clips, and make changes to those clips, when you go back to the master-sequence, sometimes the changes aren't carried through, so you must disable-enable the nested clips to kick the render files into action (to dissable/enable, select the nested clips and press ctrl+B to toggle off and on)
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PPro v2 chroma keys - help?

I'm working on a movie clip, I'm following lesson 13-4 from the PPro classroom in a book, and I want to use the chroma key to key out the sky in the sequence and superimpose an alien sky onto this clip. I've got a still image of an alien sky.
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hiya.
sounds like fun, doing the 3d stuff etc..lots to learn.
I only have cs3 so dont know about version 2 and what you can or can't do. A lot of people here will probably remember that version though, and help you more.
Also, I have maya and only use that ( and don't use it that much at all because like you I am learning how to use it and it is complicated for my snail - like brain ).
However, in terms of general work flows maybe I can mention a few things that will help.. and just remember I'm talking about maya and cs3.
I also have windows xp and mousey computer, so I can really only work with SD movies. HD makes my computer gasp for breath.
So I set up my projects in maya with the idea that in the end I will export it for SD to go into cs3 with that...
Consequently I have several options on the exports from maya...
a) numbered still images
b) avi movie
etc.
I have found that the numbered still images are nice to work with in cs3.
So I set up the project in cs3 for export to SD, which means even though I'm using numbered stills from maya ( with alpha channel ) I set up my project as SD NTSC 720x480 and choose par to suit my 4:3 or 16:9 aspect ratio ( usually I use 16:9 with par of 1.2 ).
Then I also choose a video renderer in new project that matches what I'm going to export more or less ( usually lagarith avi ).
In CS3 the alpha channel comes in with the numbered stills and that is where I drop in whatever background images or stuff I want to add ( like what you were saying about using chroma key to make a new sky ... the alpha channel is transparent, so you just add that sky without chroma key necessary ).
wav files are nice to work with in CS3 and I've never had any problems with them.
hope some of this helps and good luck and have fun !

Advanced chroma key

So I understand how to use chroma key to remove a background. For example I have a shot of birds flying and then I have taken out the birds and now it shows whatever clips underneath the birds. I want to take this one step further. Now once the birds are replaced I also want to replace the sky, or the background that hasn't been removed with the chroma filter. So essentially Im only using the shape of the birds, but two completely different source clips to get the effect. Does this make sense and how would I go about doing it.
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Zac

This is a Photoshop user forum the is also a Photoshop Elements forum. IMO If you want to replace a background on a still image the chroma key color you should use is White or Gray. When the subject is complex like hair blowing in the wind you will always need to deal with chroma key spill. White can be eliminated with blending and gray will blend and have little effect in the color. White and gray backgrounds will not cause a color cast in you exposure..
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Chroma Key/Luma Key Visualizer Help!

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Which is better for the keying (chroma key)..?

for using chroma key and blue/green screen, which is better, final cut pro or final cut express. Im new with this I dont have either or am familar with either...Also, is dvMatte Pro or whatever from http://www.padd.com/dvg/prod/prod.php?prod=dvmattefcp&view=dvg a plugin for final cut? Does Final cut not already have the keying feature? Why would I need that plugin (if it is a plugin)?

no matter what you're talking about (except price), FCP is better for everything. basically, FCE is a watered down version of FCP. the differences depend on what you want to do with it. but as far as keying, they are relatively the same. after looking at dvmattepro's site, I can't seem to figure out what it is, but the only conclusion I can come to is a plugin that saves you time keying. yes, keying will take a lot of time in FCE/FCP, and it is tricky to get right, but you don't need anything that final cut doesn't give you. check out apple's product descriptions (and numerous discussions on this forum) for details about FCE vs. FCP, or about keying.

Chroma key effect in Premiere Elements

If I buy Adobe Premiere Elements, am I able to use chroma key effect and receive a clean video free from green colour from the background, even around the hair? My experience is that it is not possible with cheaper programs.

peterwallgren
What computer operating system would you be running Premiere Elements on? If Mac, be advised that Mac does not have Chroma Key, Green Screen Key, or Blue Screen Key.
A lot of variables in the green screen videography and photography. Best download and install Premiere Elements 13 and determine if it works for you in green screen workflow.
Generalizing, I think it does a good job. But a generalization is not good enough when you get down to a specific setup with specific details.
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IMovie 11 with chroma-key and watermarks

I'm new to iMovie. I did attempt to find the answers to the questions below here and on the web. Frankly iMovie so far seems to be pain....
setup for my testing purposes only:
a) borrowed chroma-key movie from the web
b) borrowed m4p from the web
I wanted to test my ability to use chrome-key and watermarks in making a short clip using 3 products...Screenflow 4, iMovie, Final Cut Pro X.
Questions and/or statements:
1) Green-screen:
Screenflow and Final Cut took about 5-10 minutes with zero knowledge of either...Over an hour with with iMovie and never could make it work.
2) Watermark:
Aganin 5-10 minutes with Screenflow and Final Cut, with iMove it looks like I could have either keying or watermark, but not both.
Screenflow is SUPER simple and cheep (on sale today for $70), I've seem it 50% off...
Final Cut is OUTSTANDING but super costly for what I wanted to do....Really a great product.
Anyway, here I am with a iMovie and so far it looks like it isn't a fit for me...Anyone know if a way to tweek it to make both chroma-key and watermarking work? I guessing it's just me, but the others seemed so simple.
Attached are screen copies of each...in order below are iMovie, Final Cut Pro X, and the output of Screenflow....
I want to thank those that I borrowed these images from...I will not use them beyond my testing....
Thanks for any helpfull hints...

iMovie is designed with a very forgiving green screen feature so you can hang a green bedsheet on a wall and get a decent effect. It is designed for people making home movies. Perhaps for this reason, if you have a perfect green key in iMovie, then iMovie might think you used the green on purpose. It expects some variation. When people are doing computer generated graphics, or creating a green background with Photoshop or Keynote or Powerpoint, I suggest using a gradient between close shades of green, rather than a monochromatic green.
If you need sophisticated control of your keying, get FCPX. I am not familiar with Screenflow.
Also, iMovie does all rendering in one pass. This means it cannot do effects that require a render on top of a render. Say you want a greenscreen effect with a watermark on top. That is two renders. This is easy in Final Cut Pro, but not possible in iMovie without jumping through some hoops.
Also for this reason, longer movies should be done in FCPX. What for iMovie would be an immense job requiring huge resources, FCPX can do by chopping it up into bitesize pieces.

Chroma Key not rendering

My foreground is on V2 - it is a graphic on a green background I created in Photoshop.
My background is on V1 - footage.
I wish to key V2 over V3 and have used Chroma Key filter. Everything looks fine until I hit Render.
At that point everything inverts and it is like I am keying the green screen over the footage instead of the graphic.
Weird, as I can play the timeline and everything is fine - graphic keys over background no problem It is only when I hit Render I have a problem

I asked because there is no V1 and V2 nor Chroma Keyer nor even filters for that matter in FCPX.
I don't understand what V3 is doing on top of the Photoshop file? If you have photoshop it would be much better to knock out the transparency there and bring in the file with transparency and overlay it in the timeline.

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