The .jpg file extension or JPEG (an acronym for "Joint Photographic Experts Group") is
|“||[a] compression technique used for saving images and photographs. Reduces the file size of the images without reducing their quality; widely used on the World Wide Web.||”|
JPEG image files are encoded using a standard for file compression (making the files smaller) that preserves essential color and display information in a fairly photorealistic way, with smooth edges, shapes and color blends. JPEG files are generally preferred for displaying still image photographs in digital form. The JPEG format is "lossy", meaning some information is lost when an image is compressed. This accounts for the "fuzziness" and patchy color areas what you may see when lower resolution JPEG images are enlarged to fill a space on the screen.