What does "resolution" mean in relation to digital images?

In the context of digital images, "resolution" primarily refers to the number of pixels contained in a given area, typically expressed in pixels per inch (PPI). Higher resolution means that more pixels are used to represent an image, which generally results in greater detail and clarity. This metric is essential for determining how well an image will reproduce on various mediums; for example, printing requires a different resolution compared to displaying an image on a screen.

Understanding resolution is crucial for artists and designers as it impacts the visual quality of their work, especially when enlarging or printing images. A higher pixel density can provide a sharper and more vibrant appearance, while a lower pixel density may result in a blurry or pixelated image. Recognizing this aspect allows artists to make informed decisions about image quality based on the intended use of their digital works.