Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Image Processing(also: Digital Image Processing)
- The use of computational algorithms to analyze, enhance, transform, or extract information from digital images. In accessibility, image processing techniques are applied to convert visual content into accessible formats for blind and visually impaired users, including generating…
- Image Segmentation(also: Region Segmentation)
- A computer vision technique that partitions a digital image into multiple distinct regions or segments based on shared characteristics such as color, intensity, or texture. In accessibility applications, image segmentation is used to simplify complex images for tactile…
- Information Graphics(also: Infographics, Data Graphics, Statistical Graphics)
- Visual representations of data, information, or knowledge designed to present complex information quickly and clearly. Common types include bar charts, line graphs, pie charts, scatter plots, and more complex visualizations. Information graphics pose significant accessibility…
- Interpretive Alt Text
- Alt text that goes beyond objective, functional description to convey interpretive dimensions of an image such as mood, symbolism, narrative, and aesthetic effect. It is most relevant for images where meaning is carried by formal attributes (composition, color, lighting,…
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