It is a small segment of text incorporated into a graphic that provides a name for a component illustrated in that graphic or for some action or process illustrated by the graphic. It provides an identifying title for the graphic, a quick-reference phrase that helps users understand the overall purpose and content of that graphic. The process of adding descriptive textual labels to graphics in order to identify components illustrated by those graphics or actions or processes associated with those graphics. Jagged edges in a graphic that you need to use graphics software to get rid of. The process of getting rid of jagged lines in a graphics by using graphics software.
Graphics use different types of formats.
Icons provide color and liveliness to otherwise dull, boring technical information. Icons remind you of actions you might want to take or concepts you might want to recall outside the immediate context of what you are reading. In online technical documentation, graphics provide special opportunities for illustration. Online, you can provide color, liveliness, and aesthetics to otherwise dull and boring technical information. Online, you are able to include large numbers of highly detailed, full-color graphics, which is not possible in print documents.