What does the term “resolution” indicate in digital imaging?

The term "resolution" in digital imaging refers to the amount of detail an image holds. This is typically quantified in terms of the number of pixels that compose the image, with higher resolutions indicating a greater number of pixels and thus more detail that can be captured and displayed. For example, a higher resolution image can reveal finer textures and sharper edges, allowing viewers to perceive more intricate elements within the image.

Resolution can be expressed in various ways, such as pixel count (for example, 1920x1080) or as a measurement of spatial frequency in terms of dots per inch (DPI). It directly affects the clarity and quality of the visual content; if an image has a low resolution, it may appear blurry or pixelated, lacking the detail necessary for clear comprehension.

Regarding the other aspects mentioned in the choices, they address different characteristics of images. Speed of image processing pertains to how quickly images can be manipulated and rendered, while brightness levels refer to the lightness or darkness of the image, and color depth indicates the number of colors that can be displayed. Although these elements are important for overall image quality, they do not define "resolution." Thus, the emphasis on detail holds true in the context of resolution in digital imaging.