pixel data

These demos work with the raw pixel data. They all use the same scenario of calculating a proportional difference from one frame to the previous frame. This makes for a very crude movement sensor.

Note that there is very low performance using Safari.

• pixels-overlay: Process pixels in a frame, drawing an overlay on the original video
  Pixel processing
• pixels-process: Process & manipulate pixels in a frame, drawing the whole frame
  Pixel processing, drawing ImageData
• pixels-worker: Process frames in a worker thread for improved performance.
  Pixel processing, worker thread, averaging