Particles from webcam

Good morning everyone, i was trying to create an ensable of particles recreated from images from the webcam. ideally i would like to be able to then move and distor those particles. i am stuck at the beginning. I know the changes that i want to apply to the different particles but i don’t know how to create them as particles. I tried to use the webcam to create a particled effect but the particles were pixels and coun’t move, they would only change the color. please help me.
thank you. Mandarino