White vertical lines with graphics

DinaDani · Post by **DinaDani** » Mon Jul 04, 2005 10:28 am

I was fiddling around with lipsync where there is a lot going on, besides the character singing, because i think it's just more dynamic ^^. Anyway, the clip I was working with had 3 drunk girls sitting on a table. The one in the middle would be singing, while the left and the right one were spinning around. Now the leftmost girl would go in front of the singing girl, messing up the lipsync. A way of going around this problem would be to export a frame where the leftmost girl wasn't in front of the middle one, cut away the rest of the scene (except the left one) and paste the picture of the not moving left girl on top of it.

It came out looking like this: http://www.wastedspace.nl/~dinadani/screencap.jpg

Now as you can see (it's more clear at the top and bottom of the picture), a slim white line is being drawn inbetween the left and the middle girl, exactly at the point where I cutted off in photoshop.

Anyone know a reason for why this is happening, and maybe a fix for it?

LenWidleheyt · Post by **LenWidleheyt** » Mon Jul 04, 2005 11:17 am

Is that image exported from inside premiere? In that case, the same thing might have happened to me once.

The way I did it at first was I made a PSD file with the part I wanted to put on top of the rest of the video, and where everything else was transparent. This is when the line turned up.

Next, I made a PSD with the whole full-sized image taken directly from the video, but with an alpha channel of the part I wanted to show. This time, the line was gone.

Both methods are supposed to do the exact same thing, but this still happens.

Hope this works for you. Good luck on the rest of the lip-synching; the more work you put into it, the better it will look!

Zarxrax · Post by **Zarxrax** » Mon Jul 04, 2005 11:41 am

Try using white alpha matte transparency type.

DinaDani · Post by **DinaDani** » Mon Jul 04, 2005 12:11 pm

LenWidleheyt wrote:Is that image exported from inside premiere? In that case, the same thing might have happened to me once.

The way I did it at first was I made a PSD file with the part I wanted to put on top of the rest of the video, and where everything else was transparent. This is when the line turned up.

Next, I made a PSD with the whole full-sized image taken directly from the video, but with an alpha channel of the part I wanted to show. This time, the line was gone.

Both methods are supposed to do the exact same thing, but this still happens.

Hope this works for you. Good luck on the rest of the lip-synching; the more work you put into it, the better it will look!

I don't really understand what you mean.

Next, I made a PSD with the whole full-sized image taken directly from the video, but with an alpha channel of the part I wanted to show. This time, the line was gone.

I'm not a photoshop-guru really, so I don't exactly understand the alpha channeling of the 'highest' part.

Anyway, i am still trying to figure this one out. When i export a picture from premiere to photoshop and cut out a part there, the cut is clean. No opacity of 50% at the borders of the cutted out part. But when i use the picture (.psd or .bmp, doesnt matter much) in premiere again, the borderpixels seem to have a bit of transparancy, which causes the white line.

Another thing I noticed today, anyone else got problems with huffyyuv files suddenly getting corrupt in premiere? The files play fine in bsplayer, but when i view them in premiere i see all kinds of artifacts. Now the funny part, when i export a single 'corrupt' as a huffy movie, the artifacts disappear. But when i export multiple 'corrupt' clips (layered and edited with track matte's etc) as a huffy, the artifacts are back. Anyone else had problems with huffy clips suddenly showing artifacts in premiere?

DinaDani · Post by **DinaDani** » Mon Jul 04, 2005 12:26 pm

Zarxrax wrote:Try using white alpha matte transparency type.

You mean using it on the 'leftmost, not moving girl' which is on top of everything else? Anyway, I can't find a white alpha matte or anything that looks like it, you sure that's the name? I'm using Adobe Premiere Pro 1.5 by the way.

DinaDani · Post by **DinaDani** » Mon Jul 04, 2005 12:45 pm

LenWidleheyt wrote:*help*

Ok I understand what you mean now, so discard the upper part where I didn't. Anyway, I added the alpha layer to the 4 layers already present (a red glow appeared), saved it as a .psd and imported it, but the white line is still there. So thanks for the tip, but it didn't work in my case.

I tried the same thing with 3 different clips this time around, but the white line kept coming back on those 3 occasions. Adding an alpha channel didn't do much good either. I do noticed that it only appeared at the vertical side of the border between the transparant part and the part that is cutted out. At the horizontal part, there was no white line.

Anyway, how do you guys use graphics like this in premiere? I can't believe that I am the first one with this problem when adding still pictures to videos.

p.s. I'm terribly sorry for 3 posts in a row and I would have edited my previous posts if I could...