What is the purpose of the ‘Describe Image’ API?

• A. To detect facial features in images
• B. To provide a textual description of an image
• C. To enhance image resolution
• D. To convert images to other formats

Answer: (B)

The 'Describe Image' API is designed primarily to provide a textual description of the content within an image. This API analyzes the visual elements in an image and generates a descriptive caption that captures key attributes, objects, actions, and the overall context of the scene. This capability is particularly beneficial for accessibility, as it helps users who cannot see the image to understand what it depicts through language, effectively bridging the gap between visual and textual information.

In contrast, the other options address different functions: detecting facial features pertains to image analysis, but does not involve scripting a comprehensive description. Enhancing image resolution and converting images to other formats are technical modifications that deal with the quality and type of the image, rather than conveying the content or meaning of the image itself. Therefore, the primary function of providing a textual description clearly aligns with the described purpose of the 'Describe Image' API.