Upscaling and cropping
dapoopta
9 Jun 2008 20:43
Tom, I am still learning. This isn't just for submission here, but for my personnel experience in video. I want to learn how to stabilize footage, and doing so creates black borders on my video. The only way to get rid of those is to upsize the video. or downsize the pixels. Sorry for being a newb :-P. I just want to learn.
The portion that is still confusing to me is the part when I export. Here is what I am going to attempt.
1) import clip
2)export clip as 1280x720, pixel ratio 1, deinterlace, and save with photojpeg coded.
3)reimport into CS3, cut and trim, export as photojpeg with 1280x720
I think this is correct... let me know if you see any flaws
The portion that is still confusing to me is the part when I export. Here is what I am going to attempt.
1) import clip
2)export clip as 1280x720, pixel ratio 1, deinterlace, and save with photojpeg coded.
3)reimport into CS3, cut and trim, export as photojpeg with 1280x720
I think this is correct... let me know if you see any flaws
shedli
9 Jun 2008 20:54
Hmm, if the idea is to crop or motion stabilize, I would do the following:
• capture the footage, which will give you a 1920x1080 interlaced file
• create a 720 sequence
• drop the clip in the sequence scaled @ 100%
• deinterlace the footage
• add keyframes and shift the clip around to crop/stabilize as needed
• you can scale the clip down if you want, assuming you have the room to do it without leaving black edges
• once you're happy, export the file using the sequence setting (1280x720, pjpeg).
As always, make sure to monitor your footage on a proper broadcast monitor so you can catch interlacing artifacts and the like. Good luck!
• capture the footage, which will give you a 1920x1080 interlaced file
• create a 720 sequence
• drop the clip in the sequence scaled @ 100%
• deinterlace the footage
• add keyframes and shift the clip around to crop/stabilize as needed
• you can scale the clip down if you want, assuming you have the room to do it without leaving black edges
• once you're happy, export the file using the sequence setting (1280x720, pjpeg).
As always, make sure to monitor your footage on a proper broadcast monitor so you can catch interlacing artifacts and the like. Good luck!
dapoopta
10 Jun 2008 00:50
THANK YOU!!! Exactly what I was looking for!!! Now, is there a way to see what my ACTUAL resolution of the video is, after I have cropped it down (or scaled it up) to the new size? I know I can export is as 720...but just wanted to MAKE SURE I wasn't stretching anthing. Last question. Then I am super happy!!!! THANKS AGAIN!!!
ironstrike
10 Jun 2008 03:25
Make sure the "composition settings" are set 1280 x 720, then you know it is the proper size. lol dont upres it beyond 1080 and then export a "streched version" as a 720, that will just take your computer longer.
Also, the process of downresing the 1080HD clip to 720HD gets rid of a lot of the deinterlaced artifacts. Because the height is decreased. After effects also has an HDV deartifacter which you should probably apply, also if you know how to use expressions you can do even more complicated effects to get rid of "jpeg" artifacts and even grain. Expressions are kind of advanced though, you have to use semi-mathematical formulas.
Also, the process of downresing the 1080HD clip to 720HD gets rid of a lot of the deinterlaced artifacts. Because the height is decreased. After effects also has an HDV deartifacter which you should probably apply, also if you know how to use expressions you can do even more complicated effects to get rid of "jpeg" artifacts and even grain. Expressions are kind of advanced though, you have to use semi-mathematical formulas.