AI engineering glossary · Generative media multimodal
What is image captioning?
Image captioning: Generating a natural-language sentence that describes the content of an image. It is used for accessibility alt text, photo search and dataset labelling, and is typically scored with metrics such as CIDEr or BLEU.
Image captioning: an example
Given a street photo, the model outputs 'A vendor selling flowers beside a busy road in the morning.'
Related terms
More Generative media multimodal terms
- Image tokenizer
- Image-to-image translation
- Inception Score
- Inpainting
- Late fusion
- Latent diffusion model
- Latent space
- LLaVA
Where you learn it
Image captioning is part of the AI Engineering Program, which teaches it with notes, a hands-on lab and an exam. The first lesson is free.