I have a video with a guy dancing . I would like to attach to his hand an image. How will I synchronize the image to move along his hand?
Do I have to go frame by frame moving the image or there is a better way?
Depending on your footage, you'll have better and faster result by using AE's matchmoving/tracking tools, that doing it by hand.
Here are the docs on how to use these tools, and here is a quick search on community help that will point you to tutorials and extra info.
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