Remember, you can click on the images to view them in a larger size. Working with digital images requires a working knowledge of the methods used for encoding images for the computer. These encoding methods include file formats, page description language, and compression schemes. Image file formats can be either raster or object-oriented. Raster files, or bit-mapped data, are created by scanners and digital cameras.
Raster files store images as a matrix of picture elements called pixels.
This type of file is used when digitally processing photographic images.