What does the term "resolution" refer to in digital graphics?

The term "resolution" in digital graphics specifically refers to the number of dots or pixels per linear unit of output, which determines the clarity and detail of an image. Higher resolution means that there are more pixels packed into a given area, resulting in sharper and more detailed images. This concept is vital for various applications in advertising design, as it impacts how graphics will appear on different media formats, such as print or digital screens.

For instance, when designing advertisements for print, a higher resolution is essential because printers require more detail to produce high-quality images. In contrast, web graphics can often use lower resolutions, as screen displays have different requirements. Understanding this concept helps designers produce visually appealing and professional materials that meet the intended display standards.

The other options relate to different aspects of image quality but do not define resolution. Brightness and contrast pertain to the image's light and dark areas rather than the pixel density. Color depth refers to the number of colors an image can display, which is also separate from resolution. Lastly, file format encompasses how images are packaged for storage and transmission but does not inform about their resolution.