TrackMotion vs. Pan/Crop

taliesin wrote on 10/23/2003, 8:13 PM
I noticed something very strange.

I have a still (a jpg-picture) showing a map. Now if I zoom in there using TrackMotion it becomes totally blurry. But if I do same using Pan/Crop it's sharp like the original picture is. I tested same using different pictures but it only happens to that one picture.

This is not only a preview issue. The picture keeps looking very blurry even if I render it.

What might be the difference here between TrackMotion and Pan/Crop?

TIA Marco

Comments

jetdv wrote on 10/23/2003, 10:58 PM
Track Motion works on the VIDEO image while Pan/Crop works on the actual scanned photo. If you are zooming in on a photo, you HAVE to use Pan/Crop. Otherwise you are zooming in on the 720x480 (NTSC) image instead of however many extra pixels there are in the actual picture.
johnmeyer wrote on 10/23/2003, 11:00 PM
Track Motion works on the VIDEO image while Pan/Crop works on the actual scanned photo

Wow, I didn't know that. Very useful information.
hugoharris wrote on 10/23/2003, 11:56 PM
--Track Motion works on the VIDEO image while Pan/Crop works on the actual scanned photo

Oh! I always wondered why zooming in with track motion degraded the quality of stills. I learn something new every day I log onto this forum. Thanks.
Skevos_Mavros wrote on 10/24/2003, 12:29 AM
I didn't know that one either, and I use Vegas a lot. Made perfect sense as soon as I read it though!

Thanks!



Skevos Mavros
mavart@mavart.com
http://www.mavart.com
TorS wrote on 10/24/2003, 1:24 AM
There is a video signal flow diagram on page 37 in the manual. Take a look at it.
Tor
Grazie wrote on 10/24/2003, 1:37 AM
Torsie! D'yer know what, I've never ever seen that page?!? Maybe "seen" it, but did not registered it in my brain - thanks! - Very simple, very obvious . . . I do love flow diags . . . . this type of approach to explaining stuff could be used even more - yeah?

Thanks Torsie . . .

G
taliesin wrote on 10/24/2003, 5:59 AM
Mmh, strange thing about it is - I've tested it with other pictures (on same resolution) and there it also worked fine with Track-Motion. Only this one picture lost so much quality. I have to make some further tests. Thanks for that info!

Marco
taliesin wrote on 10/24/2003, 6:26 AM
O.k. - I made several new tests and I realized I was completely wrong thinking I could keep the quality using Track-Motion zoom on certain pictures. Seems to be exactly what you said, Edward. Thanks again! Now I understand :-)

Marco
taliesin wrote on 10/24/2003, 6:29 AM
Oh, interesting! I didn't realize that one yet. Gives me some more valuable answers. Thanks for the hint!

Marco