The full form of JPG or JPEG is the “ Joint Photographic Experts Group “. JPG or JPEG is a standard image format for storing compressed image data. Despite various reductions in file size, JPEG images maintain good image quality.

JPEG (n.) A standardized format for storing graphic data in binary computer files, allowing over 16 million different colors. It allows for lossy compression, i. e. the compression of data into a form which re-expands into an image close, but not identical to the original image. Files stored in this format usually carry the extension jpg or jpeg.