How do you apply mosaic exactly?

[val_f]

I can't imagine it being all manually done by hand, with someone having to trace the naughty bits in each frame. What if it's a bukkake scene and there's like 20 bits you have to keep track of at once?

On the other hand are software advanced enough to do feature tracking?

Sorry if this is the wrong forum to ask...:study:

 

[WillEater]

The question really is, how do you remove it?andalaugh:

 

[jjjjeczalik]

http://forum.corel.com/EN/viewtopic.php?t=14394&p=67781#p71105

Reading the above leads me to believe that the editor(s) need merely to pinpoint a certain area as the video is moving, and set the censoring software to mosaic an area of a certain size. I would imagine that it is done manually, and non-destructively, so that mistakes (too much censoring) can be fixed. It probably is a bit time-consuming, but maybe there are a few people or companies that specialise in doing it? (Since it is a way of life in Japan, in that all pornography must be censored.) All of this is just speculation on my part.

It's the opposite of what the below article points out with what purports to be a device that "removes" mosaic, which is of course impossible. (The mosaic can be "reinterpreted", but never actually restored, no more than if I create a grid of 16 squares of varying colour, and somehow expect any device or person to read my mind and tell me what colours a 64-square grid would contain if overlaid.)

http://www.japanprobe.com/2006/01/31/why-is-japanese-porn-censored/

 

[timscampi]

It's pretty easy to do.
As SecretPal suggested, any video editing software advanced enough can do it.
If it's a professional software (Like Adobe Premiere), which the companies are probably using, they even have tracking functions. You select an area of the image and all the masks will move according to the tracking data. The operator censoring the video just has to manually correct the tracking data when the software can't do it properly.
Easy job to do (but a bit boring) and for a 2 hour film, it can probably be done in less than a day.

 

[wirama]

that's easy.
there are a lot program for that, one of them called Adobe After Effects. how it works is exactly like Adobe Photoshop, but with video. but the real problem is, after you put those mosaic and you save it, it won't come off so it's permanent. those mosaic in your video? or in this forum and other website? it's permanent. if you want the non-mosaic video, you have the original video or the un-edited, un-mosaic video. check in google or youtube, there are a lot of tutorial about it.