Google Vision API is a great way to add image recognition capabilities to your app. It does a great job detecting a variety of categories such as labels, popular logos, faces, landmarks, and text. You can think of Google Vision API as a Google Image Search offered as an API interface that you can incorporate into your applications.
This is a companion discussion topic for the original entry at https://blog.crowdbotics.com/how-to-build-a-real-time-logo-detection-app-with-react-native-google-vision-api-and-crowdbotics/