GPUImage - GPUImage is an open source iOS framework for GPU-based image and video processing.
Google Vision AI - Cloud Vision API provides a comprehensive set of capabilities including object detection, ocr, explicit content, face, logo, and landmark detection.
Cloudimage - Cloudimage.io is the easiest way to resize, store, and deliver your images to your customers through a rocket fast CDN.
CCV - CCV is a open source/cross-platform solution for blob tracking with computer vision.
IMG.LY - Power Your Apps with IMG.LY | The Leading Provider of Design, Photo, and Video Editing SDKs
ImageVision - ImageVision provides image and video recognition solutions.