Which of the following is not an application of the image recognition service?

The image recognition service is primarily designed to analyze visual content and recognize specific elements within images. Applications such as object detection, smart albums, and scenario analysis all leverage this capability.

Object detection involves identifying and locating objects within images, which is a direct application of image recognition. Smart albums utilize image recognition to categorize and organize photos based on recognized objects or themes. Scenario analysis might use image recognition to interpret visual contexts or environments depicted in images for further analytics.

On the other hand, speech analysis pertains to the processing and understanding of audio signals, specifically spoken language, rather than visual data. As such, it does not fall under the applications that utilize image recognition services.