Wallflower

Wallflower is a script plugin for Photoshop that aims to replicate the look of RA-4 processed and scanned analog prints. It does this by subtly reducing saturation in shadows and highlights, by smoothing out color transitions, by adding split-toning and by mimicking the pre-flash commonly used in the printing process. It’s highly customizable and comes with a number of action presets for different looks.

Go here for more information and example images.