It may seem difficult to believe, but there was a time when editing a photo with a filter or an overlay was hugely complex and required huge amounts of processing power to even accomplish. Of course, with the advent of apps like Instagram and the native filters in Apple’s Photos app, we take this type of image editing for granted these days, and have become accustomed to the filters that Facebook-owned Instagram or a third-party editing app of choice provides. Filters are clearly here to stay, and now, they’ve just been taken to a whole new level thanks to some intense server-side and AI rendering technology offered by the wonderful Prisma app for iPhone and the iPod touch.