In digital imaging, printed text, artwork, and photographs are converted into digital images via digital scanners or other imaging devices.
Using a grid, pixels are mapped on a computer and saved. The tone value of each pixel determines the color or hue of an image. Binary code encodes the value as “bits”.
Computers read these "bits" of information and convert them into analog representations of images. Pixels per inch determine the resolution of an image. The following are different for each digital image:
- Dynamic range
- Bit depth
- File format
- File size
- Compression
Web pages, multimedia, booklets, graphic presentations, and more are all created with digital imagery.