How do I achieve this look via postprocess? (similar to modest mouse 1st album cover)

[eeemptinesss]

I really like the cover of the first album of the Modest Mouse. I want to try to achieve a similar look in 3D space. not quite sure on how to set up the shader material

[ClockworkOcean]

It’s a posterize post process with two colors

Posterization Post-Process Fundamentals - Unreal Engine 4

[L1z4rD89]

That could be a infrared picture. Maybe something like this:

So this:

Becomes this: