Blue bars, how to remove?

Odaroff wrote on 8/25/2009, 6:33 AM

Video taped a wedding and in a fair portion of the footage I've got blue bars from an overhead chandelier set on blinding. Any suggestions on how these can be taken out?

Example of bars ( http://img99.imageshack.us/my.php?image=bluebars.jpg )

Comments

farss wrote on 8/25/2009, 6:58 AM

I'd start by tryong to use Color Correction to grade them out ignoring the damage I'm doing to the rest of the frame. If that's possible then I'd add a duplicate copy on a lower track, remove the CC, then go back to the upper track and mask out all for the frame apart from the part with the blue flare.
If the camera was moving then that's going to be a huge amount of work. Even CC'ing out the blue is going to be very difficult.

Bob.

Coursedesign wrote on 8/25/2009, 7:24 AM

This is a job for After Effects with the $99.95 RE:Vision RE:Fill plug-in (or any of a few other plug-ins for this purpose).

[The "blue bars" come from the CCD imagers in your camera, this is referred to as "vertical smear." High level pro cameras (tens of thousands of dollars) spend good money to reduce this effect to something like -140dB below the main image. CMOS imagers don't have this problem, they have "rolling shutter" instead :O).]

Odaroff wrote on 8/25/2009, 8:04 AM

Thanks, my HSC-DX1 didn't have this issue so proves the CMOS sensor works :)

Don't have After Effects and I love my niece but 0.o to fix it that would be out of price range :(

Any other in Vegas or Freeware/Shareware ways to do it would be appreciated. After Effects is on my wish list I just wish I could afford it...

Odaroff wrote on 8/25/2009, 8:06 AM

[quote]I'd start by tryong to use Color Correction to grade them out ignoring the damage I'm doing to the rest of the frame. If that's possible then I'd add a duplicate copy on a lower track, remove the CC, then go back to the upper track and mask out all for the frame apart from the part with the blue flare.
If the camera was moving then that's going to be a huge amount of work. Even CC'ing out the blue is going to be very difficult.[\quote]

Luckily the camera was on a tripod and mostly stationary...

I played with this a little last night may have to look into it more today and just isolate frames with her in it for example.

gpsmikey wrote on 8/26/2009, 1:19 PM

Sheesh -- what a rude awakening to find that. Only thing that comes to mind is to add a particle generator and "beam" the bride up since it looks like she is in the transporter.

mikey