Getty Images .Net SDK by Getty Images lets developers interact with the Getty Images API from their .Net application. This SDK currently supports searching for images, getting image metadata, and creating download URLs.
Thread Genius recently launched with the goal of mapping the world's visual taste. Thread Genius believes that web recommendations based on text fall short of capturing consumers' true taste. Its computer vision technology captures taste on visual input. Its API opens the service to others.
As interest in cloud storage goes mainstream, Cloudinary offers a cloud-based solution for storing, processing and delivering web assets with special emphasis on website image processing and delivery, which can be accessed through the Cloudinary API.
PixLab offers a set of APIs that hopes to meet most of your media analysis and processing needs. Whether it's media storage, machine vision, or image processing you need; there is not much on the media analysis/editing market today that PixLab doesn't offer through RESTful APIs.