Remove shimy from video ..VEGAS PRO
by David Lynch
on
Jul 1, 2009 at 9:20:06 am
Does anybody know how to remove shimy from a video.
It maybe called interlace.
The video is of a early model classic car and the shiny parts of the car like front grille or any chrome parts seem to shimmy.
Is this called interlace and how do I get rid of it for the DVD.
Re: Remove shimy from video ..VEGAS PRO by Mike Kujbida on Jul 1, 2009 at 1:29:02 pm
This isn't an interlace issue.
Instead, it's the video levels being far too hot (i.e. high) and causing you all kinds of grief.
Take a look at your waveform scope and you'll see what I mean.
You can try bringing the level down with the Color Curves or Levels controls.
Re: Remove shimy from video ..VEGAS PRO by Mike Kujbida on Jul 1, 2009 at 3:53:35 pm
Luc, with all due respect, that's the wrong filter to use in almost every circumstance.
B&C affects the entire image while Curves & Levels only affect specific portions, making them better choices.
Re: Remove shimy from video ..VEGAS PRO by Luc Enders on Jul 1, 2009 at 7:06:44 pm
Agree but also a lot harder to do right. Overdoing in a certain range only will cause unnatural contrast (which can be mitigated with adjusting mid-level contrast). So depends on your PP skills.
That said I don't know how the image looks like so can't tell for sure which filter is best.
Re: Remove shimy from video ..VEGAS PRO by Mike Kujbida on Jul 1, 2009 at 7:45:31 pm
IMO, no but I've been using Photoshop for a long time and the Curves control there operates almost exactly like the one in Vegas does.
The other thing the OP could try is the Secondary Color Corrector FX and apply the Computer RGB to Studio RGB preset.
This works in a similar fashion to the Levels control.
Re: Remove shimy from video ..VEGAS PRO by Luc Enders on Jul 2, 2009 at 12:22:09 am
The preset filter would apply then to the entire image? Or I assume you would then limit the range using luminance upper limits? The curves control is certainly better way to go to control reduction but could use an explanation as it's not quite trivial to do it properly.
Sony could use the shadow/highlight filter from photoshop to make it easier (and that's still little bit tricky to get transition natural unless it's slight correction).
The curves control in Photoshop is a combination of both curves+levels. Just noticed to do the same I can create a new point in color curves and then move the corner that way (like a level control).
Re: Remove shimy from video ..VEGAS PRO by Mike Kujbida on Jul 2, 2009 at 1:22:24 am
"The preset filter would apply then to the entire image?"
The Computer to RGB preset takes the 0-255 luminance range and drops it down to 16-235.
I generally limit it's use to photos but every once in a while, it comes in handy for video footage.
"Sony could use the shadow/highlight filter from photoshop to make it easier (and that's still little bit tricky to get transition natural unless it's slight correction)."
Glenn Chan has some excellent articles about this and other colour correction issues on his site.
I encourage you to check them out.
