libjpeg: libjpeg (Independent JPEG Group's JPEG software) libjpeg: libjpeg: Software to implement JPEG image compression and decompression. JPEG libjpeg: (pronounced 'jay-peg') is a standardized compression method for libjpeg: full-color and gray-scale images. JPEG is intended for compressing libjpeg: 'real-world' scenes; cartoons and other non-realistic images are not libjpeg: its strong suit. JPEG is lossy, however, on typical images of libjpeg: real-world scenes, very good compression levels can be obtained with libjpeg: no visible change, and amazingly high compression levels are possible libjpeg: if you can tolerate a low-quality image. libjpeg: