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Replacing an image on a TV screen by Ais and Kayla

 
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Aislynn
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Joined: 03 Feb 2005
Posts: 35782
Location: Sawyerville, USA

PostPosted: Mon Feb 25, 2008 9:50 pm    Post subject: Replacing an image on a TV screen by Ais and Kayla Reply with quote

I wrote this up in answer of Jourdan's question and she suggested I make it it's own tutorial post. This is how I replace an image in a TV screen or monitor with a new clip in Vegas. (There are a few ways to do this but I've found this works best for odd-shaped screens or if the TV or monitor you want to replace the image on is turned at a slight angle. )

1. Take a screencap of the scene with the TV (or monitor screen or whatever) in it that you want to change the image on.

2. Use a graphics program like Paintshop, Photoshop or even good ol' Paint to cover the TV screen with either solid blue, red or green. A good rule of thumb is that if you have a lot of blue, red or green in the other parts of your screencap, then pick a color that there's not a lot of or preferably any in that scene because you're going to have Vegas remove that color and so if you choose blue and have a lot of blue around the TV screen, then all of that will disappear as well.

3. Save your new screencap with the blue, red or green screen and import it into Vegas. Put it on the timeline above the clip you're going to want to play in the TV screen.

4. Go to your Effects tab, choose Chroma Keyer. Pick whichever color you chose for your TV screen, blue, red or green. When the dialogue box opens, you'll see a little eyedropper (with handy red arrow pointing at it on the cap below ).



Your cursor will turn into the eyedropper. Go to your clip and put the eyedropper onto your blue/red/green masked screen and click it. That should cause only the screen on your TV to become transparent. If other parts of the clip become transparent as well, try adjusting the Low and High threshold sliders and that should do the trick.

5. Use the pan/crop tool on the clip you want to play in the TV screen to resize and move it so that it fits in the screen. You can use the TV Simulator effect to get scan lines, distortion or whatever if you think it needs it if you don't want to leave it plain.

If you don't want to use the screencap/Chroma keyer method, you can also use the cookie cutter on the TV screen, choose "Cut away section" and line your video clip up underneath it with the pan/crop tool in the same way as above. I like using the screencap/Chroma keyer because you can pick precisely what shape of the screen you're removing and the cookie cutter may not be able to be that precise depending on the shape and angle of the TV screen. But it's whatever works best for you!

Also note, I'm using Vegas Movie Studio 6.0, which doesn't have the ability to mask with the pan/crop tool (which would let you cut out an odd-shaped screen or a screen at an angle). So I have to make do with the good ol' cookie cutter or the chroma keyer. Check for other tutorials involving the pan/crop mask to learn how to use that.

Note: I was going through the Vegas help thread and found that Kayla had written this up a while ago on the same subject. Here's a great visual on how to use the cookie cutter to achieve this effect. Thanks, Kayla!

AlcoholicPixie wrote:
Cookie Cutter Tutorial by AlcoholicPixie

This tutorial is specifically aimed at people who want to use cookie cutter to manipulate clips so they look like they're on one of the TVs in the hatch etc. The values may not be exact, however, so play around with them yourself until you achieve your desired effect.

To begin, drag your desired clips onto the timeline. It would be a good idea to drag the 'TV' clip onto the Video Overlay line, as when you cut out the screen, it will act as a window for whatever is on the Video line. But we'll worry about that later.

It would be a good idea to start by taking a screen cap of the TV, with the icon shown below, and saving it to your hard drive (Fig 1).



Then import the picture onto the timeline as you would do with any video clip, deleting the clip you originally placed on the timeline.

Now you will need to click on the little 'Event FX' symbol on the TV clip and select 'Sony Cookie Cutter' (Fig 2) and click OK.



Probably the best shape to use with this screen is the 'Oval' shape, and the 'Cut Away Section' method. Once you first click these, you will see that the whole of the TV clip is gone, and you are left with the clip underneath. You will need to play around with the levels of 'Size' and 'Feather' until you're satisfied, but I found that setting the 'Feather' level to 0.19 and the 'Size' level to 0.240 worked quite well.

What might make it look even more effective is turning the clip black and white. You might also like to think about moving the clip using the 'Pan/Crop Tool' so that it's more centred on the TV screen (Fig 3)



There you have it!

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Last edited by Aislynn on Tue Apr 01, 2008 8:18 pm; edited 1 time in total
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Jemmz
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Joined: 21 Oct 2006
Posts: 21120
Location: Ultra (DE)

PostPosted: Mon Feb 25, 2008 10:15 pm    Post subject: Reply with quote

That's awesome! I'll have to use that sometime! Thanks Ais
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riay_night
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Joined: 14 Jun 2007
Posts: 2591
Location: The Land of Eternal Heat

PostPosted: Tue Feb 26, 2008 1:10 am    Post subject: Reply with quote

Wooo Ais, you're awesome!!!
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Aislynn
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Joined: 03 Feb 2005
Posts: 35782
Location: Sawyerville, USA

PostPosted: Tue Feb 26, 2008 1:17 am    Post subject: Reply with quote

Aww, thank you, Jemma and Jourdan! *hugs!* ♥!
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Captain Freya
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Joined: 31 Jul 2007
Posts: 5298
Location: Scranton, Pennsylvania ;)

PostPosted: Fri Mar 14, 2008 10:04 pm    Post subject: Reply with quote

*Longs for Vegas to try out this ace-sounding effect*
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