Static/ Unchanging Background Removal in Blender 3.5 (35)

Let's take a deep dive into Blender's Compositor to identify and remove the static background of a movie file. Think of it like doing "green screen" except it can be any combination of colours - as long as the subject doesn't share the same colours as the parts of the background they are in front of. Time codes: 00:00 Intro 01:10 Static Background Removal requirements 02:33 Scene, Marker setup 05:45 Compositor Workspace 06:37 Input Nodes 10:25 Difference Key Node 14:41 Cleaning up the Matte 16:28 Despeckle Node 18:32 Dilate/Erode Node ("Opening", "Closing") 25:44 Forcing to Fully Opaque or Transparent 28:02 Set Alpha Node - applying the matte 29:50 Composite Node - the Final node 30:30 Bringing results into VSE