Infoseite // Luma & Chroma Key benefit from a mask



Frage von fußpflege:


Dear All,

I have premiere in the familiar constellation of video tracks 1 & 2 with the videos, and lane 3 with the mask. The mask is exported with Alpha, so that track 1 is shown schonmal. The mask is also another blue item, in which lane 2 reingekeyt (; to denglisch) .... I get the point and do not despair s.dieser really simple task.
With trace masks I had no success as they allow only the Alpha and Lumakeys. I get clean weggekeyt everything, but how can I (the different sources, track 1 & 2) (identified individually by Keys, Black / Blue)

If someone has an idea, I would seehr build!

See you soon,

Pedicure

Space


Antwort von Axel:

Compositing - ABC, generally taken as generally valid:

The upper trace / level decreases at 100% opacity of the underlying down to 0%. If the upper level has 80% opacity, the lower car 20%. A dynamic exchange ratio. The terms "top" and "bottom" are technically only illustrations. But meaningful, you should translate with "background and foreground." What is the front (above), reveals what is behind (below), from complete. A hierarchical rule, which applies in all programs.

Example: The foreground is the room where the wall meets the landscape, the background, from complete. The window in the center also allows a look. A window-mask affects the opacity of the wall (0%) and thus so) (on the landscape (100%). You can not see isolated. A second mask is first applied as of the first independent views (and therefore presented in the program with a separate table field or a separate "layer"), namely, that they take away some of the other masks (s.Fenster passing person> mask becomes smaller, second Silhouette of the corresponding mask subtracted) of the window or can add to (neighbor goes just over the window sill, mask is larger).

"fußpflege" wrote: ... another blue item, in which lane 2 (reingekeyt denglisch. to be ..).

You are confusing mE "mask" with "mat". If you are the effect of the black outline (visible trace of the lower part) want to pick up again, you have the black outline of itself: Editing the same time to one video track (only one way to composite or transparent mode to say 'normal multiply> subtract> etc., you've chosen here, the alpha-punch, a punch there is no chroma, keying is applied to real image areas) to the underlying (and thus car - so - again acting on the underlying track).

"fußpflege" wrote: ... But how can the different sources (lane 1 & 2) to assign the respective keys (black / blue)

Answer: Not at all, because, as I said, affect the "sources" are mutually reinforcing. The masks track determines the transparency ratio of the two tracks. Portions of this mask should be changed if the way is a new mask is applied to the existing mask, not directly to the clips. Maskenmodi and are also often confused Ebenentransfermodi. To act on the tracks 1 + 2, one has only one layer transfer mode, but as many Maskenmodi. If we apply the mask or the other in another mode, one would have the current composition and nest with duplicated video tracks to create a new composition. This kind of nesting is essential for working with composition programs.

By keying (chroma, luma), we first generated a mat. It is already part of the picture, for example, you could hang a green cloth in the window. The mat is on the surface, the upper track s.der an opacity of 0% is assigned, so the landscape below 100%. Well, if someone passes in the room s.Fenster (car mat is smaller than)) is not enough for the neighbors (masks for the arms.

All these are the real tools for mask, rather than on tasks for AAE APP.

Space


Antwort von fußpflege:

Hi Axel,

Thank you for your quick response. AFX Deselect I have to because I do all my Premiere has unraveled new Project. It is supposed to be only a short transition. I have attached a Picture for illustration times. If there is no solution, then stop, but not so difficult that can not be true ...
As I said, in the blue part is the other video signal gekeyt.

Greeting

Foot

[/ img]

Space


Antwort von Axel:

This is very simple indeed. Clear blue ;-)))

Space


Antwort von fußpflege:

Hi Axel,

there's the problem if I use the chroma key on the lettering is still synonymous Video 1 yes, but not just durchgekeyt Video 2! The built-in video pass to Alpha 1, the Blue Video 2

Space


Antwort von Axel:

If the lettering with the alpha channel sandwichmäßig in the middle, the alpha (checkerboard replaced) by the contents of the lower, the lettering through the upper *, and indeed, as with the font-level only - through the plains Transfer Mode Alpha "- are defined in the top track completely transparent pixels. Or we talk past each other?

* Technically not. What is in the Scriptures, whether they are black, white or blue, is simply not subtracted from the opacity of the upper track.

Space


Antwort von fußpflege:

When I put the lettering in track 2, so everything is covered by the video trail 3rd I do not know how I can assign it. Synonymous with the Deckkraftoptionen I reach only comical Effects ...
But many thanks for your efforts!

Space


Antwort von Axel:

"fußpflege" wrote: When I put the lettering in track 2, so everything is covered by the video trail 3rd I do not know how I can assign it. Synonymous with the Deckkraftoptionen I reach only comical Effects ...
But many thanks for your efforts!


That with the sandwich and the available> right click> Composite Mode> Alpha Matte FinalCut is the method that is done in no time. In Premiere CS4 will appear in the dropdown menu fade mode, however, no "alpha". I do some handicrafts and can tell you how I hingekriegt it. It works, but it is ridiculously complicated. Maybe it's easier, and another says something about it.

You want that the background is visible. It is to run a script. This writing is to have the contents of a second clip. Understood?

Background Video 1
2 is the video clip that is shown in the Scriptures.
Video 3 is the writing on transparency (alpha). With> Video Effects> Keying> Alpha-Adjustment and then in the Effect Controls> Alpha-reversal Only> mask.

Video track 2 and 3 are nested about right. Then> Effect Settings> Opacity> Überblendmodus> Lighten
(precisely why "Fill Light"? No) idea.

Request for vigorous shaking, so that my Premiere is a penny.

Space


Antwort von fußpflege:

Hi Axel,

I am mighty curious. I will try it out first thing tomorrow morning!

A blessed Sunday ... more

Space



Space





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