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Originally Posted by bilditup1
Have you got a guide on how to rotoscope or make masks effectively?
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It's a big topic to do rotoscoping for the type of accuracy you need in this scenario "properly" or "efficiently" . But the generate idea is you just draw a mask around objects and the mask animates, isolating the object of interest. This way you separate objects into layers which you can composite together. Typically, you would use something like after effects or mocha. There are many tutorials on youtube and similar sites, I don' t know of any good ones offhand. There are some "easy" tools like rotobrush in AE, which is semi automated but not as accurate - but it might be good enough for many cases. There are various tips and tricks that can make roto work go much faster. People tend to start out go frame by frame - that's not the way to do it. It's the most despised gruntwork in compositing and VFX work because it's can become very tedious even for dedicated roto artists with dedicated software and hardware.
There are many ways you can generate masks in general in avisynth, but it won't be accurate enough here for what you want to do, and since roto is the most time consuming, it's always the last resort
Quote:
Originally Posted by bilditup1
Also, how can you guys tell that the content is 12fps at any given point?
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The correct way to determine the fps in general is examine the fields for unique motion. Or another way is to bob it to 59.94 to look at the unique frames (maybe with yadif(1,1) if top field first) . I wouldn't IVTC right away first, because you can lose motion samples - if there is a 29.97 fps section for example. It's very common in cartoons, some sections like the intro or credits have a higher content framerate . Or sometimes some sections or even 59.94 parts or sections like overlays