Custom Vision Service makes it easy to build and refine customized image classifiers to recognize specific content in imagery. Using state-of-the-art machine learning, you can train your classifier to recognize what matters to you, like categorizing images or your products or tagging images for your website filters. Simply upload labeled images and let Custom Vision Service do the hard work. Simply upload labeled images, or use Custom Vision Service to quickly tag any unlabeled images. Just 30-50 images per class is enough to train the API to start recognizing the concepts you care about, whether that��s people, animals, objects, words, or abstract symbols. Using simple REST API calls and an intuitive web interface, Custom Vision Service makes it easy to test, retrain and improve your classifier over time.