VirtualDub - Remove Region plug-in problem

[fazerking]

Hi there, I have been tying to remove(mask) a moving object like a car crossing the street in video. At the very beginning, I thought "Region remove" plug-in can do, but it just can work on a fix location in the video. so do you guys know what other plugin I can use for this purpose? Thanks

[filmboss80]

What -- you've never heard of the wonderful "Complex Motion Masking" plugin?

Neither have I.

Neither has anyone.

You will need much more than a VirtualDub filter to do that particular task. You must step up into the more expensive and time consuming realm of motion effects such as those offered by After Effects.

[jagabo]

If the motions are simple you can use AviSynth's Animate() with an overlay.

[Khaver]

Are you trying to remove it and replace it with the background as if it's invisible, or are you just trying to mask or blur it so it isn't recognisable? I have a Wipeout filter that allows you to key frame a blurred box on the screen. Here it is.

[fazerking]

You guys are wonderful and helpful!!!. I will try it first. Many Many thanks. Actually, I am trying to mask the object in the video (not invisible as I know it will be a huge work), what I want to do is just mask it in the video....just like a man in a news who was interviewed by the reporter and not willing to let his face being recognizied by public...something like that.

After testing wipeout, this is what I am talking about. Thanks again for your help!!!

[EddyH]

If all you want to do is put, say, a black rectangle over the car or some part of it (a driver/passenger's face, the license plate), then there's probably scope for using BlankClip and some kind of overlay function (or, heck... "Logo" in AVS or Vdub). You'll have to get hands dirty with defining the area, and maybe delve into the murky world of Animate if the area has to move, but it'd be doable. Might be worth seeing if there's bespoke "censoring" applications available, mind.

I'll have having to figure this one out myself soon ... got people on my latest vid who may want to be blurred out, Google Street View / Newshour interview-with-a-crime-victim style. Told 'em I'd do it ... know it can be done ... haven't the foggiest idea actually how
(and if they're on it for a short enough stretch I might just extract the frames, load them into PSP all at once and use a high-strength Blur brush that can obliterate their identity (and that of several bystanders) in a single shot... Click, Ctrl-S, Ctrl-F4, Click, Ctrl-S... and put a load of copypaste (possibly spreadsheet-assisted) lines splicing the frames back into the script. It may well be faster that way than finding out how to do it "correctly"!)

[jagabo]

Pixelate face:

AVISource("filename.avi")
blur=Crop(370,80,64,64).PointResize(8,8).PointResi ze(64,64)
Overlay(blur,370,80)

before:

after:

You can use BilinearResize() instead of PointResize() to get blurring rather than pixelating.