Amazon Rekognition is one of the Amazon services that is part of Amazon Machine Learning. You just register and activate your AWS account on this services. Amazon Rekognition can perform object and scene detection, image moderation, facial analysis, celebrity recognition, face comparison, text in image analysis, and video analysis. Technically, Amazon Rekognition applies deep learning algorithms for machine learning implementation.

You can visit Amazon Rekognition console on https://console.aws.amazon.com/rekognition/. Try to see some demos for this service, as shown in the following screenshot. Some demo scenarios are shown in the left-hand menu. Just click on the Demos menu and select a picture; you will see a result of image analysis on the right side. You also can upload your own image file and try to analyze it:

For demo in this section, we will develop to perform image analysis. We will detect objects in an image using Amazon Rekognition. In general, our demo can be described in the following figure:

From the preceding figure, a camera is attached on Raspberry Pi. We develop a program to upload a picture file to Amazon S3. Then, we analyze the image file from Amazon S3 using Amazon Rekognition.

Next, we configure Pi Camera on Raspberry Pi in next section.