I'm not sure of the easiest way to describe what I am trying to create, so apologies if it is a lengthy description.
I have a fairly straightforward car journey video (dash-cam) and wish for a "face", or other object, to randomly appear in the centre of the clip, starting as a pin-prick and increasing in size until it occupies about 50% of the screen before "dissolving/disintegrating/exploding/disappearing", without interrupting the video/journey.
The "face", or other objects, are currently in .jpg format but I can easily convert them to a host of alternative formats if necessary.
The whole process, from pin-prick to disappearance, needs to be controllable in regard to time visible.
All suggestions greatly appreciated.
Thank you,
Ian