masking motion

[Guitarjam]

I’m not sure how to do it in AE but if you have premiere pro check out this link:

https://forums.creativecow.net/cgi-bin/page_wrapper.cgi?forumid=2&page=https://www.creativecow.net/articles/sareen_aanarav/color_pass/index.html

Have a great day!

[Joe]

thanks guitarjam, I don’t have premiere pro but i will watch the video anyway to get some ideas or techniques from it.

[Jimmy Brunger]

You just need to key out the rose using one of AFX’s colour keyers (try all of them or combine them to get the best result) and then when you have a fairly good key duplicate the layer with the keying effect on it and control the colours of the rose until you are happy. Delete the keyer from the original layer and desaturate that layer to B&W or whatever you fancy. A bit of tweaking and you’re done.

If you can’t get a good key off the rose, as other colours around it are too similar, you may have to animate a mask around it (roto) which is long and laborious, but sometimes the only viable option.

Have fun!

[Mark]

For this, I would use the leave color filter. Basically, you select the color that you want to keep, then adjust the filter to desaturate the rest of the image. You will sometimes get some color bleeding if there are surrounding elements with very similiar color.

Mark

[Joe]

thanks guys, but I think you missed understood me, I wanted to be able to track my mask while its moving. Meaning, if I masked the rose, the girl is running with it, I want my mask to follow the rose. As of now, if I put a mask on the rose, it will just stay in one place instead of moving along with the frames or following the rose across the screen or something. Thanks again.

-joe

[Tony Kloiber]

Well you can’t apply tracking data directly to a mask 🙁
but you can track the rose movement, apply to a solid, copy the mask from the rose, paste onto the solid, use the solid as a matte for the rose. If the mask around the rose changes shape over time then you have more of a task a head of you. You will need to roto the rose (animate the mask with keyframes) mask. If you roto then you don’t need the solid. A possibility is that you track, apply track to a solid, garbage mask the rose (a loose mask shape) and then use the leave color effect to get just the rose shape.

However you get there once you have the rose isolated the you can put a copy of the clip below it (in the timeline) and add any color effect you want to that.

It’s all work but it beats painting houses.

TonyTony

[Joe]

Thanks Tony, since I am not advance yet in after effect, would it be too much to ask if you could create a small sample in after effect application file then I can work from it? again, thanks for your help.

-joe

[Tony Kloiber]

Yes I suppose, give me a day to work up something. In the mean time search the user guide (under the help menu) for Tracking, Mattes and the leave color effect description.

TonyTony

[Tony Kloiber]

Ok Joe I have it done. You have an email address you want me to sent it to?

TonyTony

[Joe]

Hi Tony, thats great, I can’t wait to see your sample, yeah, you can send it to smm97@yahoo.com. Thanks Tony.