These examples document the core libraries (those maintained by the Processing team) and a few selected contributed libraries. There are many other libraries available.
Video (Capture)
Getting Started (Capture)
Frame Differencing
Background Subtraction
Brightness Thresholding
Brightness Tracking
Mirror
Mirror2
Color Sorting
ASCII Video
Disgrand
Framingham
HSV Space
Live Pocky
Radial Pocky