Digital Photography Glossary: H

histogram: A graph that maps out brightness values in a digital image; usually found inside exposure-correction filter dialog boxes.

hook-and-loop tape: A kind of tape whose two sides adhere to each other, with one having rough hooks and the other soft, fuzzy material.

hot shoe: The device on a camera that holds an external flash and provides an electronic connection to the camera.

hot spot: A bright area in a photograph that come from reflections on eyeglasses or unevenly spread lighting.

HTML: Hypertext Markup Language. A computer language used to structure text and multimedia documents, and to set hyperlinks between documents; used for display on the Internet.

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