The DOCOMO Character Recognition Android SDK can be utilized to integrate an Android application with the DOCOMO Character Recognition API, enabling English and Japanese character recognition. The API scans an image and returns specific coordinates of individual characters.
Google has released the TensorFlow Object Detection API which provides access to an open source framework for constructing, training and deploying object detection models. The API provides access to Google's in-house object detection system, and includes a selection of trainable detection models.
The Rekognition API differentiates its feature set by processing images to recognize more than just the location of faces. Rekognition's technology will analyze a given photo and present a list of scenes, each with a probability rating. Faces are not simply identified, but are also classified for age and emotion.