Post processing User's view 2D Image

Hi, I’m new to the unreal engine platform, I’ve been looking documentation about plugin creation in Unreal Engine but so far none of them were able to give me a hint about what I’m trying to achieve. I’m trying to create a plugin that could be able o perform an algorithm that modifies what the user is looking when playing a game (2d image pixels) in real time. I don’t know if its possible to access to those resources via UE4 plugin. If so any guidance or approaches would be appreciated. Thanks in advance :slight_smile: