A digital image is a picture created or stored in a format that computers can process. It consists of tiny dots called pixels, each representing a specific color. When combined, these pixels form the complete image that can be displayed on screens or printed. Digital images can be captured using devices like cameras or created using software. They are commonly saved in various file formats, such as JPEG, PNG, or GIF, each with different qualities and uses. Digital images are widely used in fields like photography, graphic design, and social media.