Processing is a nice way to quickly create something that is interactive or just looks nice. Here is a nice example of P5JS accessing the camera and altering the image live. This is just a page to try out embedding P5JS in this WordPress website.
If you want to give P5JS a go yourself, the live editor with this example can be found here: https://editor.p5js.org/corvanessen/sketches/ieAw2Wdos