Palette_Bot is a Reddit bot that generates a color palette for images it is called upon. The sizes of each color in the palette image are proportionate to thier dominance in the input image. Image/color processing is handled by a fork of the Haishoku Library, which I've modified to work with this bot (Haishoku-mod).
To use palette_bot on Reddit, comment "u/palette_bot" on an image post (Example). Palette_bot will then respond with an imgur link to the generated color palette. GIF images are currently unsupported.