Background for .avi

Randy Brown wrote on 1/23/2003, 6:23 PM
Howdy,
I reckon I got another dumb one...I have a 600x450x24 .avi (provided by an architectural firm that needs to be on my project) showing black on top and bottom. I thought I'd put some kind of background under it but so far, no luck. I thought if I just had it overlay a (say blue) solid background that the blue would replace the black stripes. I guess the black stripes are actually placed in the .avi file and I would have to key out black to replace them?
TIA,
Randy

Comments

Chienworks wrote on 1/23/2003, 6:36 PM
If the aspect ratio of that file is 1.0, then it should just about completely fill the frame with thin (two pixel wide) black stripes on the sides, not the top and bottom. It would have to have an aspect ratio greater than 1.0 to leave space on top and bottom. My guess is that if you're seeing these black stripes then they really are part of the video. Click your mouse on a frame that clearly shows the top and bottom edges of the picture and then open up the Pan/Crop tool. This should show you exactly what the file's frame looks like. If you see the black there then it is definately in the file.

You may not want to chroma key this out as any similar blacks in the image will also be keyed. While you've got that Pan/Crop still open, crop it down to just the picture part of the frame. This should do the job for you and is faster than keying anyway.
Randy Brown wrote on 1/23/2003, 7:08 PM
>>>crop it down to just the picture part of the frame<<<
You da man Kelly...that worked great since the whole thing is panning left to right anyway (so the sides aren't cut off).
Thanks again Kelly,
Randy