The correct answer is B. Optical character recognition (OCR).
OCR is a key capability within the Computer Vision and Document Intelligence services in Azure AI that enables systems to detect and extract printed or handwritten text from images and scanned documents.
When capturing text from images, OCR technology analyzes visual patterns (shapes of letters and numbers) and converts them into machine-readable text. For example, a photo of a receipt, street sign, or printed report can be processed to extract textual content programmatically.
* A (Text analysis): Applies to NLP tasks such as sentiment detection or key phrase extraction, not image processing.
* C (Image description): Generates captions describing the scene or objects in an image.
* D (Object detection): Identifies and locates objects but does not extract text.