After Effectsのプラグインm's Halftoneを使うと、映像にハーフトーン処理を追加することができます。 そのままだとモノクロになってしまいますが、レイヤーを複製した後に描画モードで合成することでオシャレな演出ができます。

Looking for an awesome way to mill out a photo or graphic? Check out [Matt Venn]’s halftone gcode generator which creates halftone CNC toolpaths from any image file. We’ve run across some halftone ...

[Jason] was messing around with CNC machines and came up with his own halftone CNC picture that might be an improvement over previous attempts we’ve seen. He immediately recognized the algorithm that ...