Estas son las instrucciones para usar la función de pantalla verde en iMovie '09 para cambiar el fondo de su video.
Paso Uno Para este tutoríal necesitamos dos videoclips; uno que haya sido grabado con un fondo de pantalla verde y otro que sea el fondo que desea usar.
Inicie iMovie '09 haciendo click en el icono que se encuentra en el dock o en la carpeta de aplicaciones.
Paso Dos Click Proyecto nuevo... del menú de archivos
Paso Tres Dé un nombre al proyecto y después haga click en Crear.
Paso Cuatro iMovie ahora mostrara su nuevo proyecto en blanco.
Seleccione Importar del menú de Archivo.
Seleccione Películas... del submenú de importación
Seleccione el tamaño de la resolución deseada si se le pregunta y después haga click en el botón de OK. (Grande es usualmente adecuado).
Seleccione dos archivos de películas de su disco duro y haga click en el botón de Importar.
Observe que los dos clips serán agregados a su proyecto.
Paso Cinco Haga click en Preferencias del menú de iMovie en la parte superior de la pantalla.
De la pestaña General de la ventana de las preferencias de iMovie marque la caja de Mostrar herramientas avanzadas y después cierre la ventana.
Observe que ahora tiene mas herramientas en la ventana del proyecto de iMovie.
Paso Seis Seleccione una porción del video que quiera usar como su fondo haciendo click y arrastrando su cursor del comienzo al final deseados.
Arrastre el clip del fondo seleccionado del fondo de la ventana de eventos hasta la linea de eventos en la parte superior.
Paso Siete Después seleccione una porción del video de pantalla verde en la que quiera poner su clip de fondo haciendo click y después arrastrando su cursor del principio y final del clip deseado.
Arrastre este clip del fondo de la ventana de eventos y suéltelo encima del clip de fondo que tiene actualmente en su linea de eventos.
Seleccione Pantalla verde del pop menu que aparece.
Paso Ocho Su video de pantalla verde ahora habrá sido sobrepuesto automáticamente por el clip de fondo.
Paso Nueve Si su objeto es estacionario o la pantalla verde no logro acomodar los bordes del videoclip, puede cortar el área usada para la pantalla verde.
Seleccione el video de pantalla verde de su linea de eventos y haga click en el botón de Cortar en la pantalla de previsualización del video.
Arrastre las cuatro esquinas para encuadrar el clip deseado y haga click en Hecho.
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Right from the start
You were a thief you stole my heart
And I your willing victim
I let you see the parts of me
That weren't all that pretty
And with every touch you fixed them
Now you've been talking in your sleep
Things you never say to me
Tell me that you've had enough
Of our love, our love
Just give me a reason
Just a little bit's enough
Just a second we're not broken just bent
And we can learn to love again
It's in the stars
It's been written in the scars on our hearts
We're not broken just bent
And we can learn to love again
Im sorry I don't understand where all of this is coming from
I thought that we were fine
Oh we had everything
Your head is running wild again
My dear we still have everything
And its all in your mind
Yeah but this is happening
You've been having real bad dreams
Oh oh
You used to lie so close to me
Oh oh
There's nothing more than empty sheets
Between our love, our love, oh our love, our love
Just give me a reason
Just a little bit's enough
Just a second we're not broken just bent
And we can learn to love again
It's in the stars
It's been written in the scars on our hearts
We're not broken just bent
And we can learn to love again
I never stopped
You're still written in the scars on my heart
Your not broken just bent and we can learn to love again
Oh tears ducts and rust
I'll fix it for us
We're collecting dust but our love's enough
You're holding it in
You're pouring a drink
No nothing is as bad as it seems
We'll come clean
Just give me a reason
Just a little bit's enough
Just a second we're not broken just bent
And we can learn to love again
It's in the stars
It's been written in the scars on our hearts
We're not broken just bent
And we can learn to love again
Hi, well done, the tutorial explained very well. However, I edit my video (i had a video of a black cat on a colourful background - wanted to change it for a plain, white background) in an exactly the same way as you showed, but unfortunately the background instead of changing completely into white - just overlays and gives a video something similar to TV fuzz effect???
I would be very grateful for your help.
thank you
It seems like you didn't quite understand the concept of green screen. In order to place your cat in front of a different background, you would have to shoot a video of the cat in front of a green wall. It is very important that the green background is a very uniform, even green colour. Then you shoot separately the background where you want y7our cat to appear. When your cat video on top of the background video, iMovie will analyse your shot with the cat and make every green pixel transparent, so that the image below it (the video with the background) would show.
Since your background was colourful, only the parts where there was some green colour were replaced with whatever video was in the background.
thank you very much for your reply, it makes sense now! I thought it would work for different colours of the background - not only green! I do understand now the concept! I have actually tried it and it works! thank you!
Hi, thanks for the quick tutorial. You should definitely do a video of it also. Your video was the clearest when I did a search for iMovie green screen via Google.
Andre
http://www.andrefraser.com
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