Raster graphics consist of images composed of pixels, with each pixel holding specific color information. This pixel-based approach allows for detailed and realistic images, but the resolution is a critical factor in determining the clarity and quality of the image. When you zoom into a raster graphic, you can see individual pixels, which can impact the overall sharpness.
Raster graphics find extensive use in photography, digital art, and detailed illustrations. Programs like Adobe Photoshop work with raster graphics, providing a rich set of tools for editing and manipulating individual pixels. However, resizing raster images can lead to a loss of quality, as pixel data must be interpolated, potentially resulting in a less crisp appearance.