Amazon Rekognition - Add Amazon's advanced image analysis to your applications.

OpenCV - OpenCV is the world's biggest computer vision library

Clarifai - The World's AI

Cloudinary - Cloudinary is a cloud-based service for hosting videos and images designed specifically with the needs of web and mobile developers in mind.

Google Vision AI - Cloud Vision API provides a comprehensive set of capabilities including object detection, ocr, explicit content, face, logo, and landmark detection.

Scikit Image - scikit-image is a collection of algorithms for image processing.