Glossary
Searchable terminology from accessibility, web standards, and related fields.
6 results found in image processing.
- Edge enhancement (Edge detection, Contour enhancement)
- An image processing technique that identifies and highlights the boundaries between objects in a visual scene, typically rendering them as bright lines against a dark background or overlaying them on …
- Gaussian Blur (Gaussian Filter)
- An image processing technique that smooths an image by averaging pixel values using a Gaussian (bell-curve) weighted function, creating a soft, out-of-focus appearance. In video accessibility, Gaussia…
- Instance Segmentation
- A computer vision technique that identifies and delineates individual objects within an image at the pixel level, distinguishing separate instances even when they belong to the same category. In acces…
- Perceptual Hashing (Image Hashing, pHash)
- A technique that generates a compact fingerprint (hash) of an image based on its visual content rather than its raw data. Unlike cryptographic hashes that change completely with any modification, perc…
- Semantic Segmentation (Pixel-Level Classification, Scene Parsing)
- A computer vision technique that classifies every pixel in an image into a predefined category, producing a detailed map of what objects are present and where they are located. Unlike object detection…
- Table Recognition (Table Detection, Table Extraction)
- The automated process of detecting and reconstructing tabular data structures from document images, scanned PDFs, or other non-structured formats. Table recognition goes beyond basic OCR by identifyin…